Trailer Ball, Vehicle Class III, Ball Diameter 2 5/16 in, Gross Towing Weight Capacity 6,000 lb, Gross Vehicle Weight Capacity 6,000 lb, Material Steel, Finish Stainless Steel, Features 1 Year Limited Warranty, Efficient, Interlock One Wrench Tightening System, Not Limited for Use With the Interlock Ball Mount and can be Used With Any Standard Ball Mounts, Prevents Marring of the Hitch Ball, Ball Type Interlock, Color Silver, Resistance Properties Corrosion-, Shank Diameter 1 in WARNING: Cancer - www.P65Warnings.ca.gov -