The Master Lock 1561DAST Standard Dial Combination Padlock features a 1-7/8 in. (48 mm) wide metal body for durability, with an anodized aluminum finish. The 9/32 in. (7 mm) diameter shackle is 3/4 in. (19 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 3-digit combination offers keyless convenience. The locking mechanism features anti-shim technology, offering maximum security. The bright metallic colors simplify locker identification. The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust.