{"product_id":"a2021-single-multi-function","title":"20mm single dynamic block, multi function","description":"\u003cp\u003eThe \u003cstrong\u003e20mm Single Multi Function Block\u003c\/strong\u003e is a versatile foundation block used across a wide range of configurations within the 20mm range. Featuring a modified head design compared to the standard A2020, it is engineered to accept a variety of attachments and serves as the base for multiple single, double, and triple block assemblies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMulti-function head designed to accept \u003cstrong\u003eswivel, fork, and cheek adaptors\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBase block used in the \u003cstrong\u003eA2021F, A2021HK, A2021SC\u003c\/strong\u003e, and all double and triple variations\u003c\/li\u003e\n\u003cli\u003eEngineered for integration with double and triple \u003cstrong\u003eUltra-Strap\u003c\/strong\u003e assemblies\u003c\/li\u003e\n\u003cli\u003eCompact, lightweight, and durable construction\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\u003e\n\u003cstrong\u003eIntegrated Becket\u003c\/strong\u003e with a large central rivet, providing a lightweight and rope-friendly attachment point for cascade systems\u003c\/li\u003e\n\u003cli\u003eIdeal for applications requiring flexibility, modularity, and smooth, low-friction performance\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":51302923436199,"sku":"A2021","price":11.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/2670\/6087\/files\/A2021_975b7664-a3d6-4dca-9ea4-247bf2f54fb2.jpg?v=1788610280","url":"https:\/\/541sailing.com\/products\/a2021-single-multi-function","provider":"541 Sailing","version":"1.0","type":"link"}