5/8" Pin Lock + Weld On 2" x 12" Trailer Receiver Tube Hitch Tow Bar Ball Mount 5/8" Pin Lock + Weld On 2" x 12" Trailer Receiver Tube Hitch Tow Bar Ball Mount Weld on Trailer Receiver Tube 2" x 2" Inside Dimensions 12" Long Aprox: 1/4" wall tubing