Black or Silver resettable combination lock that can be used for the hitch on trailers as they are great for that. Set your own four digit numerical combination. Light duty lock, but is great to prevent someone from taking your trailer when pulling it. Shank of 2.24in (57mm), the combination lock is perfect for both indoor and outdoor tasks such as gym locker padlock, code padlock for cabinets, pantries, and toolboxes, gate & door hasps, garages, sheds, Chains, fences and general storage. Not Packaged for resale. Specification Size: 1.67*0.85*4.17in Shakle Length: 2.24in Shackle Dia: 0.23 in/6mm Shackle Material: hardened steel Body Material: zinc alloy