7-pin plug for car or caravan trailer, 12 volt Screw-on for 8.5-10 mm cable, for 7-pin mounting-connection cable Electrical plugs into a 7-pin socket - IP 44 - waterproof Establishes a secure connection between your car and the additional major trailer transfers electronic signal lights from vehicle to trailer Powers your caravan, towing, and truck Color: Black Quantity shipped: 1 piece Dimensions: 91x53x46mm Product material environmentally friendly nylon Note: 1. Please allow error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as the standard.