Single Switchable Ratchet With Becket and cleat. The Pro-Ratchet 50 features a hardwearing nylon sheave with eight V grips to give an extreme hold on any rope. In the middle of the block is a switch that can be used even under load to turn the ratchet on or off. This version includes an anti-snag elastic line, to stop the rope getting caught between the cleat and block. The cleat can be adjusted to suit the angle required by undoing a bolt, sliding to the correct angle and locked back in place with the bolt. Becket pin can easily be removed by undoing the split ring.