The Master Lock 1530T Standard Dial Combination Padlock features a 1-7/8in (48mm) wide metal body for durability with an anodized aluminum finish. The 9/32in (7mm) diameter shackle is 3/4in (19mm) 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.