Powerful 15:1 purchaseThe Dinghy Vang is pre-reeved with low-stretch polyester line, and is constructed with a 3:1 cascade inside a 5:1 purchase for a powerful 15:1 system. 16mm blocks handle high loads. A Micro Carbo-Cam allows precise trimming. It pivots for a fair lead so it is simple to cleat and release, and angles up and down to accommodate mounting height. Maximum mast to boom distance of 30" (760mm) and a simple line adjustment shortens the system. Clevis pin attaches cunningham to vang system Stainless steel mast bracket fits most masts Safe Working Load 450lb. (204kg)