The Master Lock Number 1534D Set Your Own WORD Combination Padlock features a 2-1/2 in (64 mm) wide metal body for strength and durability. The 1/4 in (6 mm) diameter shackle is 1-1/8 in (29 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The soft touch dials with 2 grip points provide no-slip grip and keyless convenience. Interchangeable, removable dials offer over 25 million personalized combinations. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.