Plastic construction prevents rusting. and strong. Convert 13 pin Euro style plug to standard 7 pin 12V fitting as on most caravans and trailers. Slim line design. Same diameter as a normal trailer plug and just over half the length. 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. Locating slot (key way) on both sides of the adaptor it can only be fitted in the correct way. Size: . 6.8 x 5.2 x 4.6cm/ 2.7 x 2 x 1.8 inch (LxWxH). Type:13 To 7 Pin Adapter. Input:12V. colour: black Material: plastic Package Contents: 1 x 13 To 7 Pin Trailer Adapter Trailer Wiring Connector 2 Meter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.