The ratchet blocks (Ratchet) control a part of the load that acts on the sheet and allow to cazzare and leave with great ease, control but above all with great speed. Ratchets allow to manage sheets with high loads thanks to the pulley that rotates in the direction of the desired regulation. The hard-anodized aluminum pulley Ø mm. 55, thanks to the 12 titanium silver faces, perfectly holds the sheet. Ideal for mainsheet, staple and spinnaker sheet control systems. The clutch can easily be deactivated using an ON / OFF lever.