The Lang Tools 3-pc Hose Pinch Pliers Set, No. 1500, is designed with a self-locking feature that holds after pressure is applied. Simply pull the handles apart to release pressure. The set includes three sizes to accommodate various hose ranges. The small pliers have an overall closed length of 6”, while the medium is 9-3/4”, and the large is 13”. The pliers are made from high-carbon, heat-treated, steel components, and are plated with black oxide coating and an oil dip for rust prevention. The vinyl hand grips allow for comfort and a secure grasp. The patented offset design allows access in hard-to-reach areas. They are made in the U.S.A.