B&W Turnover Balls is an easily installed complete gooseneck hitch that bolts to the frame of your truck using existing holes. Comes with a removable 2-5/16" ball, and is rated for 30,000 lb. towing and 7,500 lb. tongue weight capacity. Ball stores upside down in the socket when not in use, leaving a flat, unobstructed bed floor. This is used for the Flatbed Companion Mounting System (973050).