This is a trailer universal coupler lock manufactured by Master Lock. This lock will fit just about every hitch ball coupler on the market. It fits 1 7/8", 2", and 2 5/16" trailer hitch balls. The lock has a heavy duty steel construction and is shrouded in plastic to keep the lock free of dirt and other debris that would hinder it from working properly. This is the newest Master Lock design for locking up your trailer when it is not hooked on to your truck. It will fit couplers manufactured by the following companies: Reese, Fulton, Valley, Atwood, Shelby, Putnam, Hammerblow, Dutton Lainson, UFP, Ram and more!
As with all Master Lock products this lock is covered by a LIFETIME WARRANTY