2-5/16" x 1" x 2-1/2", One Tool Torque Hitch Ball , 6,000 LB Load Rating, Chrome Plated Solid Steel Eliminates Damaging Hitch Ball During Installation, Only 1 Tool Needed When Used In Conjunction With 1 Tool Torque Ball, Mounts Best When Used For Automotive & Towing, Trailers, Vans & Moving Trucks, Marine Recreation.