Swivel Head – A built-in swivel pin allows this block to swivel once attached. ideal for applications where the pulling forces may change direction. The swivel cannot be locked.

Plain Bearing – The acetal sheave spins around the central axle. This type of bearing has a long lifespan and is very low maintenance.

Becket – The hole through the middle of the block can be used as a tying off point (becket).