Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. Flared cheeks prevent chafe on the halyards. The high-load bearing system has a PTFE composite bushing and sideload balls. The sheave is hard coat-anodized aluminum for additional strength.
57mm ESP Mastbase Teardrop Block. Designed to handle the high loads generated by modern racing and cruising boats, ESP blocks feature axle bearings to ensure smooth, hitch-free performance under high load and heavy winds.
Note: Special Order Only
