Features: 1.7 PIN CONNECTOR: With this 7 pin plug, you can easily connect your trailer to the towed item, and convert signal light and power supply. 2.PLASTIC SHELL: Combining pure copper contact point and ABS shell, ensuring good good electrical conductivity and preventing rust. 3.WATERPROOF CAP: Equipped with waterproof cap, the firm connection is very secure in rainy days, and the cap will also lock the socket. 4.EUROPEAN STANDARD: European standard 7 pin trailer connector, suits for commercial vehicle, trailer, cars, ships, and many other equipments. 5.SPING CABLE: Allows for more flexible application as a connection cord, and the maximum extended length can get to 2 metres. Specification: Item Type: Trailer Plug Feature: 7 Pin Material: ABS + Copper Shape: Round (Head) Colour: Black Voltage: 12V Length: Coiled cord can be extended up to 2 meters(approx. 2meter / 6.6ft) in normal working condition.