The Chicago Model L325 Universal Link Chain is useful in a variety of security situations. 24″ chain with a steel martin link welded at each end. It can be used as a connector chain to connect handcuffs to leg irons. It can be used as a lead chain by threading a pair of handcuffs through one end and using the other end as a handle. The chain can also be used to create a gang chain by threading a pair of handcuffs through the links at each end. Made in USA.