This particular receiver-mount pintle hook is designed with a solid shank and a gross trailer weight capacity of 20,000 Pound, it offers a solid complement to most class 5 trailer hitches. The pintle hook fits any lunette ring with a 2-1/2 Inch inside eye diameter, and it comes with a safety pin for secure coupling. The heavy-duty towing done with pintle hitches brings with it a certain amount of wear and tear on your towing equipment, and to prepare for this, CURT uses a quality finish on all of our pintle mounts, lunette eyes and combination pintle hitches. This hitch-mounted pintle hook is coated in a black powder coat finish to provide the perfect amount of rust and scratch resistance needed to face the heavy-duty towing you do every day.