The Curt Channel Style Raw Forged Steel Lunette Ring 48660 is a heavy-duty towing accessory that is compatible with CURT channels. It has a 3" inside diameter and an adjustable channel mount that allows for trailer leveling. The lunette ring is made of forged steel and has a 2" bolt pattern. It has a tow weight capacity of up to 24,000 lbs and comes with a lifetime manufacturer warranty. This product is made in the United States and has universal fitment.