Allen were pioneers in the development of the first AutoRatchet blocks more than 30 years ago. Years of constant development with the world’s top sailors has made the AutoRatchet one of the most reliable and effective on the market. All our ratchet blocks are engineered with ball bearing technology and advanced engineering polymers for longevity and performance.
Switchable ratchet blocks have a ratchet mechanism which can be switched easily on or off, even under load, and the swivel head can be locked in a fixed position. Allen sheave technology gives you grip under load and easy release when the load is decreased. The cheek block allows port or starboard deck mounting.