{"product_id":"double-upstand-block","title":"30mm Double Dynamic Block - Upstand","description":"\u003cdiv\u003e\n\u003ch3\u003e30mm Double Dynamic Block - Upstand\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e30mm Double Dynamic Block - Upstand\u003c\/strong\u003e is a low-profile solution designed for leading and redirecting control lines while maintaining smooth, efficient operation. Ideal for deck layouts where lines need to be guided towards cleats, jammers, or other control points, it is part of our \u003cstrong\u003eDynamic range\u003c\/strong\u003e and is best suited to applications requiring constant sheave movement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDouble-sheave upstand design for efficient line control and redirection\u003c\/li\u003e\n\u003cli\u003eLow-profile configuration reduces deck clutter and snagging\u003c\/li\u003e\n\u003cli\u003eIdeal for leading lines from mast bases, travellers, and deck control systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented Dynamic Bearing System\u003c\/strong\u003e with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and longevity\u003c\/li\u003e\n\u003cli\u003eLow-friction, fast-rolling performance for smooth line handling\u003c\/li\u003e\n\u003cli\u003eLightweight and durable construction\u003c\/li\u003e\n\u003cli\u003eSuitable for demanding marine applications requiring reliable and efficient rope control\u003c\/li\u003e\n\u003cli\u003eDesigned for continuous sheave movement and long service life in harsh marine environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196788810103,"sku":"A4111","price":60.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/4504-040.R.jpg?v=1781800765","url":"https:\/\/allenbrothers.co.uk\/products\/double-upstand-block","provider":"Allen | Performance Sailing Hardware","version":"1.0","type":"link"}