Dutton Lainson 960P-1 Class 1 Coupler Fits 2-1/2" tongue, 1-7/8" ball Clamp assembly can be easily adjusted without tools to ensure perfect fit on different vehicles Includes cotter pin and chain used to provide a seconday method of locking handle in closed position TUFFPLATE zinc finish provides protection against rust SAE Class 1 - for trailer weights up to 2000 lbs