{"product_id":"single-with-strap","title":"40mm Single Dynamic Block - Strap","description":"\u003cdiv\u003e\n\u003ch3\u003e40mm Single Dynamic Ultra-Strap Block\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e40mm Single Dynamic Ultra-Strap Block\u003c\/strong\u003e is a high-performance 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\u003eThe \u003cstrong\u003eUltra-Strap\u003c\/strong\u003e attachment provides exceptional strength and durability while remaining rope-friendly, making it an excellent choice for dinghy jib and mainsheet systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-sheave design for smooth and efficient line handling\u003c\/li\u003e\n\u003cli\u003eManufactured from durable, lightweight glass-loaded nylon\u003c\/li\u003e\n\u003cli\u003eIdeal for mainsheet, jib sheet, spinnaker sheet, 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\u003eUltra-Strap Technology\u003c\/strong\u003e provides exceptional strength, durability, and rope-friendly performance\u003c\/li\u003e\n\u003cli\u003eCoined Ultra-Strap construction improves reliability and wear resistance compared to conventional strap designs\u003c\/li\u003e\n\u003cli\u003eIdeal for dinghy jib and mainsheet systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Central Becket Hole\u003c\/strong\u003e for use as a tie-off point in purchase systems\u003c\/li\u003e\n\u003cli\u003eSpecific becket variations are also available\u003c\/li\u003e\n\u003cli\u003eLow-friction, fast-rolling performance for efficient control line management\u003c\/li\u003e\n\u003cli\u003eDesigned for reliable performance in demanding marine environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196754862455,"sku":"A20401S","price":33.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A20401S.jpg?v=1781800423","url":"https:\/\/allenbrothers.co.uk\/products\/single-with-strap","provider":"Allen | Performance Sailing Hardware","version":"1.0","type":"link"}