57mm Ratchamatic® Block — Swivel, 1.5x Grip Shackles The improved wrap-around ribbed sole

The improved wrap-around ribbed sole offers protection and superior grip

Contains ultraviolet absorbers to resist weathering

practical features

Harken Marine Grip outgrips other adhesive alternatives and waxes

allowing you to fine-tune the fit: glue it in for a locked performance fit (recommended)

57mm Ratchamatic® Block — Swivel, 1.5x Grip Shackles The improved wrap-around ribbed solePower3 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