The Master Lock No. 1548DCM Set Your Own Combination Padlock features a 3-5/16in (84mm) wide metal body for durability. The 3/16in (5mm) diameter shackle is 1-3/16in (30mm) long and made of metal, offering resistance to cutting and sawing. The 3-digit set your own combination offers keyless convenience. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.