{"title":"Triple Blocks for Dinghies","description":"\u003ch2\u003eHow to choose\u003c\/h2\u003e\n\u003cp\u003eA triple block carries three sheaves, making it the right choice for higher load purchase systems where load is significant and mechanical advantage is needed over a long range of movement. Common applications are mainsheet systems, kickers, vangs, rig tension systems and cascade arrangements.\u003c\/p\u003e\n\u003cp\u003eChoose sheave size to match your line diameter. BBB20 triple blocks suit lines up to 6 mm, typically light control lines on smaller dinghies. BBB30 triples suit lines up to 8 mm for mid-sized dinghy systems. BBB40 and BBB60 triples both suit lines up to 10 mm for heavier mainsheet and tackle applications on larger dinghies and keelboats. The BBB25 high load triple is a specialist option with all-stainless construction rated for wire and rope up to 5 mm. Suited to compact, high-load tackle systems on smaller boats.\u003c\/p\u003e\n\u003cp\u003eThe becket variant adds a fixed attachment point on the block body for anchoring the standing end of a purchase system. You need a becket when the triple block forms the moving part of a tackle and the standing end returns to the block itself.\u003c\/p\u003e\n\u003cp\u003eThe cam cleat variant integrates a cleat directly into the block, so the line can be locked off without a separate cleat fitting. BBB20 and BBB30 cam variants use a size 27 cam cleat with top-guide. BBB40 cam variants also use a 27 mm composite cam cleat with an adjustable arm angle. BBB60 cam variants step up to a 38 mm composite cam cleat, also with adjustable arm and the eye on the cam cleat arm can serve as a dead-end for a cascade system. Note that adding a cam cleat reduces the safe working load of the overall assembly compared to the block alone, so check the individual product specification if load is close to the limit.\u003c\/p\u003e\n\u003cp\u003eThe BBB40 and BBB60 ranges feature a swivel shackle that locks at 0° or 90°, suited to applications where the lead angle varies. The BBB20, BBB25 and BBB30 ranges use a fixed attachment.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in this collection\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBBB20 ball bearing triples\u003c\/strong\u003e cover lines up to 6 mm and are available in four variants: standard (402-101-05R), becket (402-101-06R), cam (402-101-07R) and becket cam (402-101-08R). The standard and becket cam versions are specifically referenced for 420 class rig tension systems.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBBB25 high load triples\u003c\/strong\u003e cover wire and rope up to 5 mm with all-stainless construction and ball cages. Available as a strap triple (402-201-10R) and a becket strap triple (402-201-11R).\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBBB30 ball bearing triples\u003c\/strong\u003e cover lines up to 8 mm with a stainless attachment eye and glass fibre reinforced polyamide sheaves. Available as standard (403-101-06R), becket (403-101-10R), cam with size 27 top-guide cleat (403-101-11R) and becket cam (403-101-07R).\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBBB40 ball bearing triples\u003c\/strong\u003e cover lines up to 10 mm with a swivel shackle locking at 0° or 90°. Available as swivel (404-101-08R), swivel becket (404-101-09R), swivel cam with 27 mm composite cleat (404-101-10R) and swivel becket cam (404-101-11R).\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBBB60 ball bearing triples\u003c\/strong\u003e cover lines up to 10 mm with Delrin ball bearings and a swivel shackle locking at 0° or 90°. Available as swivel (406-601-06R), swivel becket (406-601-07R), swivel cam with 38 mm composite cleat (406-601-08R) and swivel becket cam (406-601-09R). The cam cleat arm eye on cam variants can be used as a dead-end for cascade rigging.\u003c\/p\u003e\n\n\u003ch2\u003eDinghy class applications\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e420\u003c\/strong\u003e is specifically referenced in this collection. The BBB20 standard triple (402-101-05R) and BBB20 becket cam triple (402-101-08R) are both cited as suitable for 420 rig tension systems, where a compact, low-friction triple block is needed in the jib halyard tension purchase.\u003c\/p\u003e","products":[{"product_id":"20-mm-ball-bearing-block-triple","title":"20 mm Ball bearing Block - Triple","description":"\u003cp\u003eThe Seldén BBB20 Triple Ball Bearing Block is designed for control lines on dinghies and keelboats. Made with stainless steel ball bearings and glass fiber reinforced polyamide, it offers high strength and low friction. Can be attached with shackle or line. Ideal for 420 rig tension systems.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 300 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 600 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 6 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013370081618,"sku":"402-101-05R","price":59.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_767e3110-b891-4174-897a-a0644a177c61.jpg?v=1763034698"},{"product_id":"20-mm-ball-bearing-block-triple-becket","title":"20 mm Ball bearing Block - Triple, Becket","description":"\u003cp\u003eThe Seldén BBB20 Triple\/Becket block is a 20mm ball bearing block designed for control lines on dinghies and keelboats. It is lightweight and strong, with stainless steel ball bearings for smooth rotation. Can be attached with a shackle or line. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 300 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 600 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 6 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013370442066,"sku":"402-101-06R","price":63.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_6ac9bc66-0550-4eb2-9185-0963414839e1.jpg?v=1763034702"},{"product_id":"20-mm-ball-bearing-block-triple-cam","title":"20 mm Ball bearing Block - Triple, Cam","description":"\u003cp\u003eThe Seldén BBB20 Triple Cam Block is a 20mm ball bearing block suitable for control lines on dinghies and keelboats. It features stainless steel ball bearings for smooth rotation and a cam cleat for locking a line. Can be attached with a shackle or line. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 300 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 600 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 6 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013370802514,"sku":"402-101-07R","price":127.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_458dfe92-7322-4f57-868b-fd09b5b509e8.jpg?v=1763034700"},{"product_id":"20-mm-ball-bearing-block-triple-becket-cam","title":"20 mm Ball bearing Block - Triple, Becket, Cam","description":"\u003cp\u003eThe BBB20 Triple Ball Bearing Block with Becket and Cam is designed for control lines on dinghies and keelboats. It features stainless steel ball bearings for smooth rotation and a glass fiber reinforced polyamide composite for strength. Can be attached with a shackle or line. Ideal for 420 rig tension systems.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 300 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 600 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 6 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013380862290,"sku":"402-101-08R","price":133.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_18597917-8d81-4d04-9003-199ba9a053bd.jpg?v=1763034716"},{"product_id":"25-mm-high-load-ball-bearing-block-triple-strap","title":"25 mm High Load Ball Bearing Block - Triple, Strap","description":"\u003cp\u003eThe BBB25 Triple Becket Block is a 25mm high load ball bearing block designed for dynamic loads on smaller boats. It is ideal for use with wire and rope up to 5mm in diameter, perfect for rigging control lines, halyards and tackles. The stainless steel construction provides high strength and rigidity, with a row of stainless steel bearings for smooth operation. Ball cages to reduce ball-to-ball friction and weight. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 400 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 800 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 5 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013392724306,"sku":"402-201-10R","price":72.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_1d1a3517-b65f-482e-aa3c-5d4b3387ac06.jpg?v=1763034769"},{"product_id":"25-mm-high-load-ball-bearing-block-triple-becket-strap","title":"25 mm High Load Ball Bearing Block - Triple, Becket, Strap","description":"\u003cp\u003eThe BBB25 Triple Becket Block is a 25mm high load ball bearing block designed for dynamic loads on smaller boats. It is ideal for use with wire and rope up to 5mm in diameter, perfect for rigging control lines, halyards and tackles. The stainless steel construction provides high strength and rigidity, with a row of stainless steel bearings for smooth operation. Ball cage to reduce ball-to-ball friction and weight. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 400 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 800 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 5 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013392789842,"sku":"402-201-11R","price":78.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_0af7ed81-256c-4989-97f8-cbc855294b56.jpg?v=1763034766"},{"product_id":"30-mm-ball-bearing-block-triple","title":"30 mm Ball Bearing Block - Triple","description":"\u003cp\u003eThe BBB30 Triple Block is a 30mm ball bearing block with a stainless attachment eye. \u003c\/p\u003e\u003cp\u003eThe block features stainless steel ball bearings for strength and smooth rotation and glass fiber reinforced polyamide sheaves and cheeks. Acetal bearing cage to prevent ball-to-ball friction and to reduce weight. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 600 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1200 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 8 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013403439442,"sku":"403-101-06R","price":76.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_5bcbc053-c69d-4813-bb2a-d7cc807dcb3d.jpg?v=1763034798"},{"product_id":"30-mm-ball-bearing-block-triple-becket-cam","title":"30 mm Ball Bearing Block - Triple, Becket, Cam","description":"\u003cp\u003eThe BBB30 Triple Becket Cam Block is a 30mm ball bearing block with a stainless attachment eye, a becket and a size 27 cam cleat with top-guide. \u003c\/p\u003e\u003cp\u003eThe block features stainless steel ball bearings for strength and smooth rotation and glass fiber reinforced polyamide sheaves and cheeks. Acetal bearing cage to prevent ball-to-ball friction and to reduce weight. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 540 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1080 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 7 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013404094802,"sku":"403-101-07R","price":140.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_51698bd5-da2e-448e-bc4b-e168b79db978.jpg?v=1763034800"},{"product_id":"30-mm-ball-bearing-block-triple-becket","title":"30 mm Ball Bearing Block - Triple, Becket","description":"\u003cp\u003eThe BBB30 Triple Becket Block is a 30mm ball bearing block with a stainless attachment eye and a becket. \u003c\/p\u003e\u003cp\u003eThe block features stainless steel ball bearings for strength and smooth rotation and glass fiber reinforced polyamide sheaves and cheeks. Acetal bearing cage to prevent ball-to-ball friction and to reduce weight. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 600 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1200 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 8 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013406028114,"sku":"403-101-10R","price":84.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_8751a6e5-e905-41b7-8524-0a44ff7e69e4.jpg?v=1774950981"},{"product_id":"30-mm-ball-bearing-block-triple-cam","title":"30 mm Ball Bearing Block - Triple, Cam","description":"\u003cp\u003eThe BBB30 Triple Cam Block is a 30mm ball bearing block with a stainless attachment eye and a size 27 cam cleat with top-guide. \u003c\/p\u003e\u003cp\u003eThe block features stainless steel ball bearings for strength and smooth rotation and glass fiber reinforced polyamide sheaves and cheeks. Acetal bearing cage to prevent ball-to-ball friction and to reduce weight. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 450 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 900 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 7 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013412352338,"sku":"403-101-11R","price":134.87,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_6eb03093-b7f0-4c55-bc4c-46c473bb5f50.jpg?v=1763034817"},{"product_id":"40-mm-ball-bearing-block-triple-swivel","title":"40 mm Ball Bearing Block - Triple, Swivel","description":"\u003cp\u003eThe BBB40 Triple Swivel Block features three 40 mm sheaves for dynamic applications under medium loads.\u003c\/p\u003e\u003cp\u003eStainless steel ball bearings reduce friction, while glass fiber reinforced cheeks provide strength. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 650 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1300 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 10 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013445382482,"sku":"404-101-08R","price":176.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_2495e318-c9b5-4998-9409-7ee9966eb5d7.jpg?v=1763034886"},{"product_id":"40-mm-ball-bearing-block-triple-swivel-becket","title":"40 mm Ball Bearing Block - Triple, Swivel, Becket","description":"\u003cp\u003eThe BBB40 Triple Becket Swivel Block is equipped with three 40 mm sheaves, a swiveling shaft, and a becket for added rigging options.\u003c\/p\u003e\u003cp\u003eThe block uses stainless steel ball bearings for smooth rotation, and glass fiber reinforced cheeks provide rigidity. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 650 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1300 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 10 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013445546322,"sku":"404-101-09R","price":184.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_2be8daa4-8c0e-4dc4-baef-6fb86df7b658.jpg?v=1763034889"},{"product_id":"40-mm-ball-bearing-block-triple-swivel-cam","title":"40 mm Ball Bearing Block - Triple, Swivel, Cam","description":"\u003cp\u003eThe BBB40 Triple Swivel Cam Block is designed for high control and efficient line handling. It features three 40 mm sheaves and a swiveling shaft and an integrated 27 mm composite cam cleat. \u003c\/p\u003e\u003cp\u003eThe cam cleat arm can be set to a variety of angles.\u003c\/p\u003e\u003cp\u003eStainless steel ball bearings ensure smooth operation under load, while glass fiber reinforced cheeks provide rigidity and durability. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 450 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 900 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 7 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013445939538,"sku":"404-101-10R","price":235.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_c66a0ca7-93b5-4040-a2e9-d5bba4eab12f.jpg?v=1763034887"},{"product_id":"40-mm-ball-bearing-block-triple-swivel-becket-cam","title":"40 mm Ball Bearing Block - Triple, Swivel, Becket, Cam","description":"\u003cp\u003eThe BBB40 Triple Becket Cam Block features three 40 mm sheaves, a becket and an integrated 27 mm composite cam cleat for secure line management. It features a swiveling shaft and the cam cleat arm can be set to a variety of angles.\u003c\/p\u003e\u003cp\u003eStainless steel ball bearings reduce friction and ensure smooth rotation, while glass fiber reinforced cheeks enhance durability. Ideal for moderate and dynamic loads with minimal friction.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 540 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1080 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 7 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013446168914,"sku":"404-101-11R","price":244.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_2a5e821d-bf91-42c6-a48b-e4c958645a4d.jpg?v=1763034884"},{"product_id":"r60-60-mm-manual-ratchet-block-triple-swivel-becket-cam","title":"R60 - 60 mm Manual Ratchet Block - Triple, Swivel, Becket, Cam","description":"\u003cp\u003eThe Triple Becket Cam R60 manual ratchet blocks is designed for dynamic applications on dinghies and keelboats and features a ø60 mm composite sheave. A swivel lock, a plastic washer which is placed between block body and shackle, is included for fixed 0° or 90° shackle position. Cam cleat arm in stainless steel and the cleat itself is size 38 with a top-guide.\u003c\/p\u003e\u003cp\u003eThe block is designed with lightweight Delrin ball bearings and a switch on each side to select ratchet function or a free spinning sheave.\u003c\/p\u003e\u003cp\u003eWhen the ratchet is activated it locks the sheave in one direction and allows the sailor to relax a bit without cleating the line. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 720 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1440 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 10 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013467763026,"sku":"406-350-09R","price":236.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_5944d4e8-80ec-495a-b4c1-b38cf12fb7ea.jpg?v=1763034974"},{"product_id":"60-mm-ball-bearing-block-triple-swivel","title":"60 mm Ball Bearing Block - Triple, Swivel","description":"\u003cp\u003eThe BBB60 Triple Block is designed for high-load applications, with three 60 mm sheaves distributing load evenly. The block features a plastic washer acting as a swivel lock, allowing the shackle to be fixed at either 0° or 90°.\u003c\/p\u003e\u003cp\u003eGlass fiber reinforced cheeks and Delrin ball bearings provide smooth, low-friction performance, making this block ideal for dynamic tackle applications. \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 1000 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 2000 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 10 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013493682514,"sku":"406-601-06R","price":194.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_ae2facaa-f3b6-49d2-b6d0-316e93305e22.jpg?v=1763035044"},{"product_id":"60-mm-ball-bearing-block-triple-swivel-becket","title":"60 mm Ball Bearing Block - Triple, Swivel, Becket","description":"\u003cp\u003eThe BBB60 Triple Becket Block features three 60 mm sheaves with a becket for additional rigging options. The block includes a plastic washer as a swivel lock, allowing the shackle to be fixed at 0° or 90°.\u003c\/p\u003e\u003cp\u003eDelrin ball bearings reduce friction, while glass fiber reinforced cheeks enhance durability. This block is ideal for dynamic tackle applications. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 1000 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 2000 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 10 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013493780818,"sku":"406-601-07R","price":199.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_8f42c7c9-a81e-4145-a09c-1a22d31a4909.jpg?v=1763035047"},{"product_id":"60-mm-ball-bearing-block-triple-swivel-cam","title":"60 mm Ball Bearing Block - Triple, Swivel, Cam","description":"\u003cp\u003eThe BBB60 Triple Swivel Cam Block is a 60 mm ball bearing block with an integrated 38 mm composite cam cleat for quick adjustments and control. The cam cleat arm can be set to a variety of angles. The eye at the top of the cam cleat arm can be used as \"dead-end\" for a cascade.\u003c\/p\u003e\u003cp\u003eThe block is designed with a plastic washer acting as a swivel lock, enabling the shackle to be fixed in either 0° or 90°.\u003c\/p\u003e\u003cp\u003eDelrin ball bearings and glass fiber reinforced cheeks ensure durability and low friction, making this block ideal for dynamic tackle applications. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 600 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1200 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 10 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013494305106,"sku":"406-601-08R","price":298.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_8279cc88-8441-40a7-860a-e6002f894f7b.jpg?v=1763035045"},{"product_id":"60-mm-ball-bearing-block-triple-swivel-becket-cam","title":"60 mm Ball Bearing Block - Triple, Swivel, Becket, Cam","description":"\u003cp\u003eThe BBB60 Triple Becket Cam Block combines three 60 mm sheaves, a becket, and an integrated 38 mm composite cam cleat for superior line control. The cam cleat arm can be set to a variety of angles. \u003c\/p\u003e\u003cp\u003eThe block features a plastic washer acting as a swivel lock, allowing the shackle to be fixed at either 0° or 90°.\u003c\/p\u003e\u003cp\u003eGlass fiber reinforced cheeks and Delrin ball bearings ensure smooth operation under heavy dynamic loads.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSafe working Load\u003c\/b\u003e: 720 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBreaking Load\u003c\/b\u003e: 1440 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax line size\u003c\/b\u003e: 10 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Dinghy Store","offers":[{"title":"Default Title","offer_id":52013494665554,"sku":"406-601-09R","price":302.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/1325\/4738\/files\/index_07de47bd-a274-479e-afa4-08c720b4675a.jpg?v=1763035048"}],"url":"https:\/\/dinghy.seldenmast.com\/collections\/triple.oembed","provider":"Seldén Dinghy Store","version":"1.0","type":"link"}