connect vehicle trailer 12v 13 pin to 7pin adapter tow bar copper socket plug towing trailers converte caravan connects accessories parts

2)color:black ;3)size: 6.8 x 5.2 x 4.6cm ; 4) this item will operate all road legal lighting for your trailer and caravan, which converts 13 pin euro style plug to standard 7 pin 12v fitting as on most caravans and trailers. weather proof sprung locking flap, protects the connections when not in use and locks in the 7 pin plug, when in use. the 13 pin side fits and locks in on the existing fitting plug on the car - complete with weather sealing rubber 0-ring.