This solid, machined hitch ball is a direct replacement for the 2-5/16" ball that came standard with your B&W Turnoverball gooseneck trailer hitch. Features: Hitch ball replaces the ball from your B&W Turnoverball underbed gooseneck hitch Square ball base prevents ball from turning in hitch during hookup Sturdy steel construction Made in the USA Specs: Diameter: 2-5/16" Distance from center of locking pin hole to bottom of square base: 2" Capacity: 30,000 lbs