Lunette Ring, Gross Towing Weight Capacity 20, 000 lb, Ring Inside Diameter 2 1/2 in, Ring Outside Diameter 2 1/2 in, Mounting Bracket Included No, Number of Mounting Holes 0, Distance Between Mounting Holes Not Applicable, Mounting Hole Diameter Not Applicable, Material Steel, Features Limited Lifetime Warranty (1 yr Finish, 1 yr Parts), Single Stud Eliminates Need for a Swivel-Type Pintle Hook, Includes Castle Nut, Resistance Properties Rust-Resistant, Scratch-Resistant, Finish Powder Coated