{"title":"Single \u0026 Swivel Blocks","description":null,"products":[{"product_id":"ronstan-wire-block-tubular-rivet-head-w-removable-nylatron-sheave-45mm-1-3-4-sheave-diameter-rf103","title":"Ronstan Wire Block - Tubular Rivet Head w\/Removable Nylatron Sheave - 45mm (1-3\/4\") Sheave Diameter [RF103]","description":" \u003cp\u003e\u003cb\u003eWire Block - Tubular Rivet Head w\/Removable Nylatron® Sheave - 45mm(1-3\/4\") Sheave Diameter\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFlared cheeks to minimise chafing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemovable sheaves\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eWire blocks suit halyards, vang and backstay applications\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 45mm(1-3\/4\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e 6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L:\u003c\/b\u003e850kg(1,870lbs)\u003cbr\u003e\u003cb\u003eB.L.:\u003c\/b\u003e 1,700kg(3,740lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 88kg(3.1oz) \u003c!--- cis2:m2lulphp ---\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771502772308,"sku":"SCN-55033","price":49.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55033XL.jpg?v=1791396752"},{"product_id":"ronstan-wire-block-tubular-rivet-head-w-nylatron-sheave-25mm-1-sheave-diameter-rf418","title":"Ronstan Wire Block - Tubular Rivet Head w\/Nylatron Sheave - 25mm (1\") Sheave Diameter [RF418]","description":" \u003cp\u003e\u003cb\u003eWire Block - Tubular Rivet Head w\/Nylatron® Sheave - 25mm Sheave Diameter\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWire blocks have purpose designed narrow sheaves and grooves.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eWire blocks suit halyards, vang and backstay applications\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e 3mm(1\/8\")\u003cbr\u003e\u003cb\u003eM.W.L:\u003c\/b\u003e450kg(990lbs)\u003cbr\u003e\u003cb\u003eB.L.:\u003c\/b\u003e 900kg(1,980lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 40kg(1.4oz) \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771502837844,"sku":"SCN-55035","price":26.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55035XL.jpg?v=1791396752"},{"product_id":"ronstan-kite-block-black-w-white-sheave-pair-rf13101-2","title":"Ronstan Kite Block - Black w\/White Sheave (Pair) [RF13101-2]","description":" \u003cp\u003e\u003cb\u003eKite Block - Black w\/White Sheave\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEconomical\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e16mm(5\/8\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e4mm(5\/32\") \u003c!--- cis2:m2lulphp ---\u003e\u003cbr\u003e\u003ca href=\"https:\/\/productimageserver.com\/literature\/brochure\/55071BR.pdf\" target=\"_blank\"\u003eBrochure (pdf)\u003c\/a\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771510210644,"sku":"SCN-55071","price":15.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55071XL.jpg?v=1791396755"},{"product_id":"ronstan-series-20-ball-bearing-block-single-rf20100","title":"Ronstan Series 20 Ball Bearing Block - Single [RF20100]","description":" \u003cp\u003e\u003cb\u003eSeries 20 Ball Bearing Block - Single\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy Vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 3mm(1\/8\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t250kg(550lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t20g(0.7oz) \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771521613908,"sku":"SCN-55131","price":23.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55131XL.jpg?v=1791396876"},{"product_id":"ronstan-series-30-ball-bearing-block-single-loop-top-rf30101","title":"Ronstan Series 30 Ball Bearing Block - Single - Loop Top [RF30101]","description":" \u003cp\u003e\u003cb\u003eSeries 30 Ball Bearing Block - Single - Loop Top\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLight weight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVersatile head fittings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCan be fitted with a shackle in either of two planes to allow correct alignment of the block\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePrimary lead blocks on dinghies and catamarans\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl lines on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact modified, fiber reinforced and U.V. stabilized Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load straps and head fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t750kg(1,650lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t28g(1.0oz)\u003cbr\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771522138196,"sku":"SCN-55171","price":22.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55171XL.jpg?v=1791396880"},{"product_id":"ronstan-series-30-ball-bearing-orbit-block-single-becket-lashing-head-rf35101","title":"Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Lashing head [RF35101]","description":" \u003cp\u003e\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Single  - Becket - Lashing Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra low profile thru-sheave becket\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRF35101 accepts RF1850S shackle in both orientations to create a conventional loop top block\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating Nylatron® sheave and full contact bearing for high dynamic loads\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e=\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t600kg(1,320lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t22g(0.8oz)\u003cbr\u003e \u003c!--- cis2:m2lulphp ---\u003e\u003cbr\u003e\u003ca href=\"https:\/\/productimageserver.com\/literature\/quickGuide\/55174QG.pdf\" target=\"_blank\"\u003eQuick Guide (pdf)\u003c\/a\u003e\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/u_Zc_KYMbuE\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771522269268,"sku":"SCN-55174","price":17.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55174XL.jpg?v=1791396882"},{"product_id":"ronstan-series-40-all-purpose-block-single-universal-head-rf41100","title":"Ronstan Series 40 All Purpose Block - Single - Universal Head [RF41100]","description":" \u003cp\u003e\u003cb\u003eSeries 40 All Purpose Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t71g(2.5oz) \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771522957396,"sku":"SCN-55201","price":25.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55201XL.jpg?v=1791396887"},{"product_id":"ronstan-series-40-ball-bearing-block-single-universal-head-rf40100","title":"Ronstan Series 40 Ball Bearing Block - Single - Universal Head [RF40100]","description":" \u003cp\u003e\u003cb\u003eSeries 40 Ball Bearing Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e    5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t70g(2.5oz)\u003cbr\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771523121236,"sku":"SCN-55210","price":33.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55210XL.jpg?v=1791396889"},{"product_id":"ronstan-swivel-cleat-base-rf5","title":"Ronstan Swivel Cleat \u0026 Base [RF5]","description":" \u003cp\u003e\u003cb\u003eSwivel Cleat \u0026amp; Base\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSwivel cleat bases permit easy cleating and releasing from any angle.Sheave can be relocated to allow the control line to feed from below\u003cbr\u003eComes complete with a 28mm(1-1\/4\") ball bearing sheave, small 'T-Cleat and the 'Fast Track' fairlead.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eTypically fitted to dinghy and catamaran spars for halyard, cunningham or outhaul control.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterial:\u003c\/b\u003e\u003cbr\u003eFiber reinforced Nylon body\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eRope Ø:\u003c\/b\u003e    2 - 8mm(3\/32\" - 5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t150kg(330lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t100g(3.5oz) \u003c!--- cis2:m2lulphp ---\u003e\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771523350612,"sku":"SCN-55232","price":73.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55232XL.jpg?v=1791396890"},{"product_id":"ronstan-series-55-ball-bearing-orbit-block-single-becket-swivel-head-rf55110","title":"Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]","description":" \u003cp\u003e\u003cb\u003eSeries 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLightweight\u003c\/b\u003e\u003cbr\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub.\u003cbr\u003e\u003cbr\u003eWeight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.\u003cbr\u003e\u003cbr\u003eMulti-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.\u003cbr\u003e \u003cbr\u003e\u003cb\u003eHighest Working Load In Its Class\u003c\/b\u003e\u003cbr\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises load performance. The  proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. \u003cbr\u003e\u003cbr\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modelled to be stress optimised. The Dyneema® Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUltra Lightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra low profile integrated becket\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems on dinghies, sportsboats and small keelboats to 9M(30')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, Vang and Backstay application on boats to 8M(26')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIdeal use for mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlso ideal with halyard, vang and backstay applications on boats to 8M(26')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on sportsboats and small keel boats (lateral lead blocks)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregmented SK75 Dyneema®\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Carbon fiber reinforced, PTFE impregnated Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead fitting: Grade 316 stainless steel.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t55mm(2-5\/32\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    10mm(3\/8\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t500kg(1,100lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t88g(3.1oz) \u003c!--- cis2:m2lulphp ---\u003e\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/u_Zc_KYMbuE\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771523940436,"sku":"SCN-55256","price":50.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55256XL.jpg?v=1791396894"},{"product_id":"ronstan-series-25-utility-block-single-swivel-shackle-head-rf573","title":"Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573]","description":" \u003cp\u003e\u003cb\u003eSeries 25 Utility Block™ - Single - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEconomical\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters, etc on larger boats\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 Stainless Steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t150kg(330lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t20g(0.7oz) \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771524038740,"sku":"SCN-55259","price":21.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55259XL.jpg?v=1791396895"},{"product_id":"ronstan-series-75-core-block-single-rf74100","title":"Ronstan Series 75 Core Block - Single [RF74100]","description":" \u003cp\u003e\u003cb\u003eSeries 75 Core Block™ - Single\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eCore Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eUniversal Bearing\u003c\/b\u003e\u003cbr\u003eDynamic and high static load performance\u003cbr\u003e\u003cbr\u003eThe Ronstan Universal Bearing incorporates our proven 2-stage bearing system\u003cbr\u003e\u003cbr\u003e\u003cb\u003eStage 1\u003c\/b\u003e - Under moderate loads, Acetal ball bearings ensure minimum friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eStage 2\u003c\/b\u003e - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance.\u003cbr\u003e\u003cbr\u003eAdditionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAlloy Cheek Plates\u003c\/b\u003e\u003cbr\u003eBlock cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings.  Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eUniversal head\u003c\/b\u003e\u003cbr\u003eThe head assembly incorporates a brass bearing washer to provide smooth 360™ rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0™ or 90™.\u003cbr\u003e\u003cbr\u003eShackles are high quality forged grade 316 stainless steel.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClass leading performance and sleek, contemporary styling\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent dynamic and high static load performance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLess than half the friction of the nearest competitor\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUniversal head with full 3-axis articulation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead posts can be locked at 0 or 90 degrees, by using a 2.5mm Hex\/Allen Key\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCentral hub hole can be used as a becket take-off or tie-up point\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eIdeal for mainsheet, halyard and spinnaker sheet applications on boats to 14M (46')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVarious control line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: U.V. stabilized Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek body: Aluminium Alloy\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShackle, head post \u0026amp; hub: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t75mm(3\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t14mm(9\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t1,500kg(3,300lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t3,000kg(6,600lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t354g(12.5oz)\u003cbr\u003e\u003cbr\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771524071508,"sku":"SCN-55264","price":153.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/55264XL.jpg?v=1791396896"},{"product_id":"barton-marine-laser-replica-15-1-boom-vang-assembly-98075","title":"Barton Marine Laser Replica 15:1 Boom Vang Assembly [98075]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaser Replica 15:1 Boom Vang Assembly \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Barton boom vang assembly gives all the advantages of systems costing twice the price. 15:1 purchase is achieved through clever design of the base plate, fitted with the unique Barton swivelling triple cam block. \u003c\/p\u003e\u003cp\u003eIt is simple to fit and easy to use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatible With:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eLaser class sailboats \u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBarton base plate - Spectro anodised aluminium with three fixing bolts\u003c\/li\u003e\n\u003cli\u003e00 931 Series 0 triple swivel cam block (attached to base plate by shackle)\u003c\/li\u003e\n\u003cli\u003e00 110 Series 0 single fixed eye block (attached to base plate by shackle)\u003c\/li\u003e\n\u003cli\u003e00 211 Series 0 double block with becket\u003c\/li\u003e\n\u003cli\u003e01 091 Series 1 single tang block with becket and curved kicker key for boom\u003c\/li\u003e\n\u003cli\u003e3' 11\" (1.2 M) of 5\/32\"  (4 mm) - dyneema line for primary Red control line\u003c\/li\u003e\n\u003cli\u003e9' 11\"(3 M) of 5\/32\"  (4 mm)  line for secondary Red control line\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e*Sold as and Individual \u003c\/p\u003e \u003c!--- cis2:m2lulphp ---\u003e\u003cbr\u003e\u003ca href=\"https:\/\/productimageserver.com\/literature\/brochure\/66890BR.pdf\" target=\"_blank\"\u003eBrochure (pdf)\u003c\/a\u003e\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/WmhJ7mYEn-M\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/PwhGSVtQKB8\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Barton Marine","offers":[{"title":"Default Title","offer_id":47771794538580,"sku":"SCN-66890","price":234.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/66890XL.jpg?v=1791399781"},{"product_id":"ronstan-series-40-ball-bearing-orbit-block-single-becket-cleat-swivel-head-rf45130","title":"Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head [RF45130]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUltra Lightweight\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eLightweight\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.\u003c\/p\u003e\u003cp\u003eWeight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.\u003c\/p\u003e\u003cp\u003eMulti-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHighest Working Load In It's Class\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.\u003c\/p\u003e\u003cp\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems on spinnaker sheet on dinghies to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBall Bearings - High compression strength carbon black Acetal.\u003c\/li\u003e\n\u003cli\u003eStage 2 Bearing - Glass fibre reinforced, MoS2 impregnated Nylon\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eSheave - Carbon fiber reinforced, PTFE impregnated Nylon\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/u_Zc_KYMbuE\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771875868756,"sku":"SCN-70624","price":101.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/70624XL.jpg?v=1791400768"},{"product_id":"ronstan-series-15-ball-bearing-utility-block-single-block-loop-head-rf15101","title":"Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head [RF15101]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSeries 15 Ball Bearing Utility Block - Single Block, Loop Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmallest and lightest ball bearing block available\u003c\/li\u003e\n\u003cli\u003ePrecision molded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003cli\u003eSingle loop head blocks include an O-ring to separate running line from head lashing or fixing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\u003cli\u003eVangs, cunninghams and tweakers\u003c\/li\u003e\n\u003cli\u003eShock cord tensioning systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBB sheaves: UV stabilized acetal\u003c\/li\u003e\n\u003cli\u003eBall bearings: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCheeks: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771878064212,"sku":"SCN-71020","price":13.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/71020XL.jpg?v=1791400782"},{"product_id":"ronstan-series-15-ball-bearing-utility-block-exit-block-rf15711","title":"Ronstan Series 15 Ball Bearing Utility Block - Exit Block [RF15711]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSeries 15 Ball Bearing Utility Block - Exit Block\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmallest and lightest ball bearing block available\u003c\/li\u003e\n\u003cli\u003ePrecision molded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003cli\u003eSingle loop head blocks include an O-ring to separate running line from head lashing or fixing\u003c\/li\u003e\n\u003cli\u003eFeatures a flush rivet to minimize cutout and facilitate installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFeaturing a formed single piece housing for maximum strength and minimal rope wear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\u003cli\u003eVangs, cunninghams and tweakers\u003c\/li\u003e\n\u003cli\u003eShock cord tensioning systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBB sheaves: UV stabilized acetal\u003c\/li\u003e\n\u003cli\u003eBall bearings: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCheeks: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771878228052,"sku":"SCN-71031","price":34.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/71031XL.jpg?v=1791400783"},{"product_id":"ronstan-series-30-utility-block-single-becket-loop-head-rf681","title":"Ronstan Series 30 Utility Block - Single, Becket, Loop Head [RF681]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSeries 30 Utility Block - Single, Becket, Loop Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eProduct Information:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771938226260,"sku":"SCN-72293","price":19.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/72293XL.jpg?v=1791401450"},{"product_id":"ronstan-series-30-utility-ball-bearing-block-single-swivel-shackle-head-rf30100","title":"Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSeries 30 Utility Ball Bearing Block - Single, Swivel Shackle Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range.\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity.\u003c\/li\u003e\n\u003cli\u003eLight weight\u003c\/li\u003e\n\u003cli\u003eVersatile head fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eProduct Information:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Can be fitted with a shackle in either of two planes to allow correct alignment of the block.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrimary lead blocks on dinghies and catamarans\u003c\/li\u003e\n\u003cli\u003eControl lines on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003c\/li\u003e\n\u003cli\u003eImpact modified, fiber reinforced and U.V. stabilized Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load straps and head fittings\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/8S19bo1XdVI\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":47771938914388,"sku":"SCN-72397","price":32.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/72397XL.jpg?v=1791401452"},{"product_id":"schaefer-twin-sheet-block-f-1-1-4-t-track-black-32-97","title":"Schaefer Twin Sheet Block f\/1-1\/4\" T-Track - Black [32-97]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTwin Sheet Block for 1-1\/4\" T-Track - Black\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHardcoat anodized aluminum body and slider provide a high strength block. Aluminum sheave runs on nomex™\/Teflon™ bearing for a low-friction, high strength sheave. Articulating sheave allows for a proper lead. Pin stop makes adjustment simple. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTrack Size 1-1\/4\" x 3\/16\" (32 mm x 5 mm)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Length- 38' (11.5m)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Weight- 18000 lbs. (8182kg)\u003c\/li\u003e\n\u003cli\u003eMax. Sail Area- 715 sq. ft. (66 m2)\u003c\/li\u003e\n\u003cli\u003eSheave Diameter- 2\" (51 mm)\u003c\/li\u003e\n\u003cli\u003eMax Line- (2) 5\/8\" (16 mm)\u003c\/li\u003e\n\u003cli\u003eLength- 4-1\/2\" (114 mm)\u003c\/li\u003e\n\u003cli\u003eWidth- 1-3\/4\" (44 mm)\u003c\/li\u003e\n\u003cli\u003eHeight- 4-1\/2\" (114 mm)\u003c\/li\u003e\n\u003cli\u003eBearing Height 2-3\/4\" (70 mm)\u003c\/li\u003e\n\u003cli\u003eSWL 3500 lbs. (1590 kg)\u003c\/li\u003e\n\u003cli\u003eWeight 1 lb. 7 oz. (652 g) \u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":47772007858260,"sku":"SCN-74708","price":445.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/74708XL.jpg?v=1791402211"},{"product_id":"schaefer-single-aluminum-block-51mm-sheave-504-05","title":"Schaefer Single Aluminum Block - 51mm Sheave [504-05]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSingle Aluminum Block - 51mm Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Dia. 2\" (51mm)\u003c\/li\u003e\n\u003cli\u003eThickness 15\/16\" (24mm)\u003c\/li\u003e\n\u003cli\u003eWidth 2 1\/8\" (54mm)\u003c\/li\u003e\n\u003cli\u003eLength 4 13\/32\" (112mm)\u003c\/li\u003e\n\u003cli\u003eSWL 1750 lbs. (795kg)\u003c\/li\u003e\n\u003cli\u003eWeight 5oz. (142g)\u003c\/li\u003e\n\u003cli\u003eMax. 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Polyethylene liner and pin stop allow for easy adjustment. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTrack Size 1\" x 1\/8\" (25 mm x 3 mm)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Length- 27' (8m)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Weight- 5000 lbs. (2270 kgs)\u003c\/li\u003e\n\u003cli\u003eSail Area- 315 sq. ft (29 m2)\u003c\/li\u003e\n\u003cli\u003eSheave Diameter 2\" (51 mm)\u003c\/li\u003e\n\u003cli\u003eMax Line 7\/16\" (11 mm)\u003c\/li\u003e\n\u003cli\u003eLength 3\" (76 mm)\u003c\/li\u003e\n\u003cli\u003eWidth 1-1\/4\" (31 mm)\u003c\/li\u003e\n\u003cli\u003eHeight 4-5\/32\" (105 mm)\u003c\/li\u003e\n\u003cli\u003eBearing Height 2-7\/32\" (56 mm)\u003c\/li\u003e\n\u003cli\u003eSWL 1750 lbs. (795 kg)\u003c\/li\u003e\n\u003cli\u003eWeight 7.0 oz. 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Delrin™ sheave ensures smooth operation and high safe working load. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSheave Dia. 2\" (51mm)\u003c\/p\u003e\u003cp\u003eThickness 15\/16\" (24mm)\u003c\/p\u003e\u003cp\u003eWidth 2 1\/8\" (54mm)\u003c\/p\u003e\u003cp\u003eLength 4 13\/32\" (112mm)\u003c\/p\u003e\u003cp\u003eSWL 1750 lbs. 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Swivel head may be locked in place to avoid twist. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Diameter 2\" (51mm)\u003c\/li\u003e\n\u003cli\u003eThickness 15\/16\" (24mm)\u003c\/li\u003e\n\u003cli\u003eWidth 2 1\/8\" (54mm)\u003c\/li\u003e\n\u003cli\u003eLength 4 13\/32\" (112mm)\u003c\/li\u003e\n\u003cli\u003eSWL 1500 lbs. (680kg)\u003c\/li\u003e\n\u003cli\u003eWeight 5oz. 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Swivel head may be locked in place to eliminate twisting. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Diameter 2 3\/8\" (60mm)\u003c\/li\u003e\n\u003cli\u003eThickness 1 3\/32\" (28mm)\u003c\/li\u003e\n\u003cli\u003eWidth 2 1\/2\" (64mm)\u003c\/li\u003e\n\u003cli\u003eLength 5 1\/32\" (128mm)\u003c\/li\u003e\n\u003cli\u003eSWL 2250 lbs. (1020kg)\u003c\/li\u003e\n\u003cli\u003eWeight 7.4oz (210g)\u003c\/li\u003e\n\u003cli\u003eMax Line size 1\/2\" (13mm) \u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":47772008546388,"sku":"SCN-74737","price":121.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/74737XL.jpg?v=1791402213"},{"product_id":"schaefer-single-stainless-steel-block-60mm-sheave-705-05","title":"Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSingle Stainless Steel Block - 60mm Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDelrin™ sheave ensures low-friction and high safe working load. Swivel head may be locked in place to eliminate line twist. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Dia. 2 3\/8\" (60mm)\u003c\/li\u003e\n\u003cli\u003eThickness 1 3\/32\" (28mm)\u003c\/li\u003e\n\u003cli\u003eWidth 2 1\/2\" (64mm)\u003c\/li\u003e\n\u003cli\u003eLength 5 1\/32\" (128mm)\u003c\/li\u003e\n\u003cli\u003eSWL 2250 lbs. (1020kg)\u003c\/li\u003e\n\u003cli\u003eWeight 10.2oz (289g)\u003c\/li\u003e\n\u003cli\u003eMax. Line 1\/2\" (13mm) \u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Schaefer Marine","offers":[{"title":"Default Title","offer_id":47772008677460,"sku":"SCN-74741","price":158.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/74741XL.jpg?v=1791402213"},{"product_id":"schaefer-spring-loaded-lined-slide-stainless-steel-f-1-1-4-t-track-705-92","title":"Schaefer Spring Loaded\/Lined Slide\/Stainless Steel f\/1-1\/4\" T-Track [705-92]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpring Loaded\/Lined Slide\/Stainless Steel for 1-1\/4\" T-Track\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDelrin™ sheave ensures smooth operation and high safe working load. Stainless Steel cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy adjustment. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTrack Size 1-1\/4\" x 3\/16\" (32 mm x 5 mm)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Length 33' (10 m)\u003c\/li\u003e\n\u003cli\u003eMax. Boat Weight 12000 lbs. (5455 kg)\u003c\/li\u003e\n\u003cli\u003eMax. Sail Area 520 sq. ft. (48 m2)\u003c\/li\u003e\n\u003cli\u003eSheave Diameter 2-3\/8\" (60 mm)\u003c\/li\u003e\n\u003cli\u003eMax Line 1\/2\" (12 mm)\u003c\/li\u003e\n\u003cli\u003eLength 4\" (102 mm)\u003c\/li\u003e\n\u003cli\u003eWidth 1-9\/16\" (39 mm)\u003c\/li\u003e\n\u003cli\u003eHeight 4-15\/16\" (126 mm)\u003c\/li\u003e\n\u003cli\u003eBearing Height 2-3\/8\" (67 mm)\u003c\/li\u003e\n\u003cli\u003eSWL 2250 lbs. (1020 kg)\u003c\/li\u003e\n\u003cli\u003eWeight 14 oz. 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So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. A tough composite bearing sheave resists corrosion for a long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 45mm \/ 1-3\/4in\u003c\/li\u003e\n\u003cli\u003eLength: 102mm \/ 4in\u003c\/li\u003e\n\u003cli\u003eWeight: 103g \/ 3.6oz\u003c\/li\u003e\n\u003cli\u003eShackle pin: 6mm \/ 1\/4in\u003c\/li\u003e\n\u003cli\u003eMaximum line: 12mm \/ 1\/2in\u003c\/li\u003e\n\u003cli\u003eMaximum working load: 700kg \/ 1543lb\u003c\/li\u003e\n\u003cli\u003eBreaking load: 1400kg \/ 3086lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":47772044099668,"sku":"SCN-78752","price":48.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/78752XL.jpg?v=1791403607"},{"product_id":"harken-45mm-single-element-block-w-swivel-becket-6231","title":"Harken 45mm Single Element Block w\/Swivel  Becket [6231]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e45mm Single Element Block with Swivel \u0026amp; Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. 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It is perfect for small synthetic control lines found on high-tech dinghies. 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A tough composite bearing sheave resists corrosion for a long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 60 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 2-3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 14 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 1100 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 2425 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/VPEz75VBcj8\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":47772297134164,"sku":"SCN-80426","price":79.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/80426XL.jpg?v=1791404424"},{"product_id":"harken-40mm-carbo-block-single-w-swivel-bracket-2637","title":"Harken 40mm Carbo Block Single w\/Swivel  Bracket [2637]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e40mm Carbo Block Single with Swivel \u0026amp; Bracket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. 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Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø (mm): 40 mm\u003c\/li\u003e\n\u003cli\u003eSheave Ø (in): 1-9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (mm): 10 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line Ø (in): 3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg): 220 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb): 485 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":47772660203604,"sku":"SCN-84448","price":42.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/84448XL.jpg?v=1791405421"},{"product_id":"harken-29mm-single-bullet-block-082","title":"Harken 29mm Single Bullet Block [082]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e29mm Single Bullet Block\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 29mm (1-1\/8\")\u003c\/li\u003e\n\u003cli\u003eMaximum Line: 8mm (5\/16\")\u003c\/li\u003e\n\u003cli\u003eMaximum Working Load: 136kg (300lb)\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":47772756574292,"sku":"SCN-84707","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/84707XL.jpg?v=1791405626"},{"product_id":"harken-29mm-single-bullet-block-w-becket-083","title":"Harken 29mm Single Bullet Block w\/Becket [083]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e29mm Single Bullet Block with Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 29mm (1-1\/8\")\u003c\/li\u003e\n\u003cli\u003eMaximum Line: 8mm (5\/16\")\u003c\/li\u003e\n\u003cli\u003eMaximum Working Load: 136kg (300lb)\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":47772756770900,"sku":"SCN-84709","price":23.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/84709XL.jpg?v=1791405626"},{"product_id":"harken-38mm-single-big-bullet-block-125","title":"Harken 38mm Single Big Bullet Block [125]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e38mm Single Big Bullet Block\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 38mm (1-1\/2\")\u003c\/li\u003e\n\u003cli\u003eMaximum Line: 10mm (3\/8\")\u003c\/li\u003e\n\u003cli\u003eMaximum Working Load: 136kg (300lb)\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":47772757917780,"sku":"SCN-84717","price":36.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/84717XL.jpg?v=1791405626"},{"product_id":"harken-38mm-single-big-bullet-block-w-becket-126","title":"Harken 38mm Single Big Bullet Block w\/Becket [126]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e38mm Single Big Bullet Block with Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 38mm (1-1\/2\")\u003c\/li\u003e\n\u003cli\u003eMaximum Line: 10mm (3\/8\")\u003c\/li\u003e\n\u003cli\u003eMaximum Working Load: 136kg (300lb)\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lulphp ---\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":47772758310996,"sku":"SCN-84718","price":40.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7982\/9332\/files\/84718XL.jpg?v=1791405626"},{"product_id":"harken-60mm-single-element-block-mastbase-w-swivel-6220","title":"Harken 60mm Single Element Block Mastbase w\/Swivel [6220]","description":" \u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e60mm Single Element Block Mastbase with Swivel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. 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