This system fits into the rear of your vehicle and sinks into the raised profile of the trunkwhich, once the seats are removed,creates a ''false floor'' by fitting the deck level to the raised profile. The boxes are then fitted beneath the deck and you are able to store goods in those compartments. The level surface of the deck is perfect for mounting cargo rails to, as it spans the trunk area and leaves loads of space for storage and securing purposes. The boxes are constructed out of mild steel for rigidity and durability. The deck is made from carpeted plywood. Trap doors provide access to the boxes and havefinger hole cut outsfor opening and closing.