The Master Lock No. 175DWD Set Your Own WORD Combination Padlock features a 2in (51mm) wide solid body for strength and reliability. The 5/16in (8mm) diameter shackle is 1in (25mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-digit dialing allows for thousands of possible word combinations. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.