The Thule EuroClass Pro 902 Rear Towbar mounted bike carrier. Comes with removable 4th bike adapter.
Locks to the tow bar and the top clamps lock onto the bikes so is very secure. Features a tilting mechanism for access to the boot while the bikes are still mounted. Light board and numberplate holder keeps everything legal. Folds up for easy storage. Collection only although may be prepared to meet in South Wales area depending on location.
Please note I've currently used a library pic for the listing; detailed pics to follow.