HARKEN 57mm Power3 Ratchamatic Block - Swivel, Red Sheave, 2625.RED Item Type_Horn Cleats preventing the sheave from rubbing

preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn’t perfect

designed to automatically engage under load and freely spin under light loads — great for variable sailing conditions

investment cast

Schaefer's eye straps are manufactured from high-quality Stainless Steel

(2) 1/4" RH fasteners

HARKEN 57mm Power3 Ratchamatic Block - Swivel, Red Sheave, 2625.RED Item Type_Horn Cleats preventing the sheave from rubbingThe Carbo Ratchamatic is a load sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light air modes is seamless. Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnakers free instantly during jibes. Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style. The