Harken 38mm Big Bullet Single Block with becket and swivel allows either a 2:1 or 3:1 purchase.
Big Bullet blocks can be used as main or jib sheet blocks on dinghies, or for control line applications, such as travelers, cunninghams or boom vangs on offshore boats. Low-friction Big Bullet Blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. Delrin sheave and ball bearings. Cheek material constructed from reinforced plastic with stainless steel straps. Where applicable, blocks use #10 fasteners.
Free-rolling Delrin® ball bearings, sheave, and side plates UV-stabilized with carbon-black additive for maximum protection.
Wire Big Bullet blocks use roller bearings to carry higher loads and feature Hardkote-anodized Teflon® impregnated aluminum sheaves for strength and corrosion resistance. Mast exit blocks with cams used for halyard controls and under boom mainsheets.
