The Master Lock No. 175DLH set your own combination padlock features a 2 inch (51 mm) wide solid body for strength and reliability. The 5/16 inch (8 mm) diameter shackle is 2-1/4 inch (57 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-digit dialing allows for thousands of possible numeric combinations. The limited lifetime warranty provides peace of mind from a brand you can trust.