16mm Allen Dog Bone Optimist The 40mm switchable ratchet is

The 40mm switchable ratchet is our lightest and smallest ratchet block

The removal of ball bearings offers a further weight reduction

We suggest using this block for the king-post rotation block (bottom vang block taking the full load of the vang) on a moth vang

Ratchet blocks feature an internal ratcheting mechanism which only allows the sheave to turn in one direction

such as changing the angle at which a line is pulled or controlling its path to prevent chafing or snagging

16mm Allen Dog Bone Optimist The 40mm switchable ratchet isDog Bones can be used in a variety of applications. Ideal for use with soft shackles as rope stops or spliced to the end of a halyard to make a quick and easy attachment for the sail. CNC machined from aluminium our Dog Bones are extremely hard wearing.