Tow Ready Reese 63850 Class IV Hitch Ball, Zinc - 2" Ball x 1" x 3-3/8", 7,500 lbs. Solid steel hitch balls engineered to meet all safety requirements of VESC regulation V-7 Cold forged for superior strength Ball Size: 2" Shank Diameter: 1"; Shank Length: 3-3/8" Rating: 7,500 GTW