{"product_id":"triple-with-77-cleat","title":"40mm Triple Dynamic Block - Cleat","description":"\u003cdiv\u003e\n\u003ch3\u003e40mm Triple Dynamic Swivel Block With Cam Cleat\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e40mm Triple Dynamic Swivel Block With Cam Cleat\u003c\/strong\u003e is a high-performance, triple-sheave pulley designed for keelboats and dinghies. Manufactured from durable, lightweight glass-loaded nylon and featuring Allen's advanced Dynamic Bearing Technology, it delivers smooth, efficient line handling for mainsheets, jib sheets, spinnaker sheets, and control line systems.\u003c\/p\u003e\n\u003cp\u003eCombining a \u003cstrong\u003etriple-sheave purchase system\u003c\/strong\u003e, \u003cstrong\u003e360° swivel head\u003c\/strong\u003e, and \u003cstrong\u003eintegrated cam cleat\u003c\/strong\u003e, this block is ideal for high-load control applications requiring increased mechanical advantage and secure line adjustment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTriple-sheave design for high-purchase systems and increased mechanical advantage\u003c\/li\u003e\n\u003cli\u003eManufactured from durable, lightweight glass-loaded nylon\u003c\/li\u003e\n\u003cli\u003eIdeal for mainsheet, vang, cunningham, backstay, and keelboat control line applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented Dynamic Bearing System\u003c\/strong\u003e featuring twin rows of stainless-steel ball bearings running on a stainless-steel rail\u003c\/li\u003e\n\u003cli\u003eCaged ball bearings for reduced friction and enhanced rolling performance\u003c\/li\u003e\n\u003cli\u003eSuperior load-carrying capability and long service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e360° Swivel Head\u003c\/strong\u003e fitted with a 5mm shackle for flexible attachment and optimal load alignment\u003c\/li\u003e\n\u003cli\u003eShackle is load-rated higher than the block for added reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwivel Lock System\u003c\/strong\u003e allows the shackle to be locked in 90° orientations when required\u003c\/li\u003e\n\u003cli\u003eSwivel lock can be removed easily by undoing the shackle and removing it from the swivel pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Cam Cleat\u003c\/strong\u003e provides secure rope holding and quick adjustment of control lines\u003c\/li\u003e\n\u003cli\u003eIdeal for applications requiring both purchase and cleating functionality in a compact assembly\u003c\/li\u003e\n\u003cli\u003eLow-friction, fast-rolling performance for smooth operation under load\u003c\/li\u003e\n\u003cli\u003eDesigned for reliable performance in demanding marine environments\u003c\/li\u003e\n\u003cli\u003ePerfect for high-load control systems requiring efficient purchase, secure adjustment, and precise line control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196755714423,"sku":"A20403-77","price":181.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A20403-77.jpg?v=1781800434","url":"https:\/\/allenbrothers.co.uk\/products\/triple-with-77-cleat","provider":"Allen | Performance Sailing Hardware","version":"1.0","type":"link"}