Allen 30mm Single Dynamic Block With Fiddle.

Ideal for lightweight purchase systems which need to swivel.

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

Bearings‚ Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail.

Fiddle‚ The fiddle is a secondary smaller sheave which can be used to create an inline purchase system for a smaller lower loaded application. The fiddle features ball bearings.