2 X 2-1/2 Inch Ball Hitch Back Coupling Trailer Coupler Straight Tongue RV Parts Camper Caravan Accessories
https://www.vogueparade.com/shopping/EN/200004043/1/1005003733552610/2-x-2-12-inch-ball-hitch-back-coupling-trailer-coupler-straight-tongue-rv-parts-camper-caravan-accessories//