Trailer Ball Vehicle Class V Ball Diameter 2 in Gross Towing Weight Capacity 7 500 lb Gross Vehicle Weight Capacity 7 500 lb Material Steel Finish Chrome Features 1 Year Limited Warranty Interlock Wrench System Not Limited for Use With the Interlock Ball Mount and can be Used With Any Standard Ball Mounts Ball Type Interlock Color Silver Resistance Properties Corrosion-Resistant Shank Diameter 1 in Shank Length 2 in Standards SAE J-684