HARKEN 57mm Ratchamatic Power3 Block - Shackle, 2168 Sheave Size_40 mm Low-profile

Low-profile

Wire Bullet blocks use roller bearings to carry higher loads and features Hard Lube-anodized aluminum sheaves for strength and corrosion resistance

highly loaded systems using modern line technology and reduced line diameters

Lewmar's plain-bearing Synchro Blocks are engineered for speed

Titan winch handles won’t break your wallet or chip your gel coat

HARKEN 57mm Ratchamatic Power3 Block - Shackle, 2168 Sheave Size_40 mm Low-profilePower3 ratchet blocks provide sailors that race small one designs with three holding power options to handle a variety of wind and sea conditions. More choices allow sailors to fine tune their set ups in tandem with the purchase that provides the ideal level of power, responsiveness, and grip. The Carbo Ratchamatic is a load sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads