B&W Trailer Hitches TS10033B Tow & Stow 3in Drop 3.5in Rise 2x2 5/16 in Dual Ball Size Hitch Double Ball mounts measure 2" x 2-5/16" Provides 3" drop from top of shank to bottom of ball Fits standard 2" receiver hitch Rotates the ball to the desired size Eliminates the need for multiple ball mounts