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. The centre of the block also has 4 holes to reduce weight as well as give options for tying elastic or rope through. Located at the head of the block is another switch which can be used to lock the swivel in 90-degree orientations.