Gross load rating: up to 5,000 lbs. tongue loading: up to 500lbs. Requires 5/8" diameter hitch pin with a safety clip. For use with 2" square I.D. receiver hitch opening. Trailer ball mounting hole accepts a 1" diameter trailer ball shank. Most mounts may be used in the rise or drop position to match the trailer coupler height with tow vehicle height. Durable dark polyester finish resists corrosion.