Trailer Hitch Ball, Vehicle Class IV, Ball Diameter 2 5/16 in, Gross Towing Weight Capacity 10,000 lb, Gross Vehicle Weight Capacity 10,000 lb, Material Steel, Finish Chrome, Features 1 Year Limited Warranty, Designed for Heavy Duty Towing and to be Used With Standard Heavy Duty Ball Mounts, Two Wrench Flats, Ball Type Standard, Color Silver, Resistance Properties Corrosion-, Shank Diameter 1 1/4 in, Shank Length 2 1/8 in, Standards SAE J-684