The Master Lock 1561DAST 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. Indoor padlock is best used as a school locker lock and gym lock, providing protection and security from theft Preset three-digit combination lock for keyless convenience; bright color for easy identification Combo lock is constructed with a metal body, anodized aluminum cover, hardened steel shackle, and anti-shim locking mechanism for strength and security 1-7/8 in. (48 mm) wide lock body; 9/32 in. (7 mm) diameter shackle with 3/4 in. (19 mm) length, 13/16 in. (21 mm) width Available in blue, teal, and red (color randomly selected at time of shipment)