This is a heavy and heavy-duty cycle rack. It can take up to four bikes securely. It fits on to the flat vertical plate of a towbar, and the towhook ball goes on after it. Used no more than five times with children's bikes when we had an Espace. A big plus is the ability to fold it down to open the rear door without the need to remove it or the bikes. All the accessories and instructions included.
eBay