This binder has a built-in adjustment feature that provides a quick, easy and safe solution to attain proper tension. Simply rotate the adjustable end and extend or retract it to achieve the desired length. No more bouncing back and forth from one link to another trying to find a secure fit. The Adjustable Lever Binder comes equipped with a lock pin, making it one of the industries safest binders. 5,400 pounds working load limit. Works with 5/16" - 3/8" chain.