With the push of a button, the Retractable Trailer Hitch electronically folds out and is ready for use. Features a Class llI, 2” square profile receiver and has a towing capacity of up to 5,000 lbs. (see owner’s manual for details). When not towing, the receiver fits Volvo’s hitchmounted bike carrier accessories. Includes wiring harness and electrical socket. Ball and holder not included.