Medium-duty padlock offers the corrosion protection of a solid-brass, 1-9/16in. (40mm) wide body and cylinder as well as four-pin tumbler security and hardened steel shackle. Padlock includes a pair of brass keys. 4-pin tumbler security. Hardened steel shackle for extra cut resistance. Includes a pair of brass keys. Master Lock Solid Brass Padlock - Keyed Different - 0.25in. Shackle Diameter - Rust Resistant - Brass Body, Steel Shackle - Brass - 1 Each is one of many Security available through Office Depot. Made by Master Lock.