Towever 2" Class III/IV Trailer Hitch Tri Ball Mount with Hook (Black, Hollow Shank) This 3 ball hitch Work with 2 inches class 3 4 Receivers Hitch Tube, Fits 1 7/8", 2" or 2 5/16" Couplers Includes Three Black Hitch Balls 1-7/8 inches, 2 inches & 2-5/16 inches and a Hook for towing strap Three towing Ball Capacities: 2000lbs, 6000lbs, 10000lbs; Hook capacities: 10000lbs. setup for truck, pickup, tractor with 2 inch standard hitch receiver or drawbars. 7-1/2 inches Length Hollow Shank to extend trailer receiver Use 5/8 Inch Hitch Pin Kit or Lock ( not included)