The sheets ratchet block acts like a winch for a small boat. An upgrade from the bullet block originally supplied in the rigging kit, the ratchet block reduces the load required for you to hold the sheet without cleating in heavier winds while still allowing you to play the sheet in puffs without having to cleat it.

If your boat still has the old stainless steel mainsheet swivel, you will not believe how much easier it is to sail your boat with this new assembly.