Gooseneck Coupler Coupler Style Gooseneck Vehicle Class IV Gross Towing Weight Capacity 24 000 lb Gross Vehicle Weight Capacity 24 000 lb Compatible Ball Diameter 2 5/16 in Compatible Pin Hole Diameter Not Applicable Material Steel Finish Oiled to Be Welded Overall Length 7 1/2 in Resistance Properties Corrosion-Resistant Weight 5.87 lb Tongue Width Not Applicable Color Gray Compatible Product Type 3 in or 4 in Diameter Tubing