The Master Lock 630DAST Set Your Own Combination Padlock features a 1-3/16 in. (30 mm) wide solid metal body for durability. The 3/16 in. (5 mm) diameter shackle is 1 in. (25 mm) long and made of nickel plated steel, offering resistance to cutting and sawing. The 3 dial combination security offers keyless convenience. The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust.