DaGoose, from GusHill Industries, is fully adjustable and fits any Goose Neck Trailer Ball Hitch out there. Unlike other hitch locks, DaGoose hitch lock is made of machined aluminum and once attached to the Goose Neck hitch, you're secure from defeat. Everything that could be attacked under the lock is not exposed. The would-be thief would be hard pressed to find a way to do anything to defeat this lock. DaBull also available for Bulldog-type trailer hitches. For more info, contact Dan Horn 713-882-8154, or visit our website: www.trailerlocksonline.com, or email: ken@gushill.com. Use Coupon Code: DAN