Compatibility: This compact short 7 to 13 pin adapter is compatible with all standard 7-pin female connectors on the towbar to fit a standard 13-pin male connector. Signal Stability: The use of high-quality copper core contacts with good conductivity makes the electrical connection between the main vehicle and the trailer quick and stable. Safe and Reliable: Approved EN61000, RoHS, CE certification, reliable product, 12V/24V universal. Plug and Play: Position it, insert the towbar adapter. Very easy to install, remove and replace. Weather Resistance: It is made of high-quality ABS and copper material, can prevent rust, durable lifespan. It can provide a safe and stable electrical connection for trailer lights on commercial vehicles, cars, boats, and special vehicles. This trailer connector adapter is suitable for European standard trailers and establishes a stable and safe connection between the main vehicle and the towed vehicle. Product Description: Product Name: 7 to 13 Pin Adapter Material: ABS + Copper Color: Black Voltage: 12V/24V Universal Dimension: Diameter 4.2cm, Length 8.5cm Weight: 80g Packaging 1 * 7 to 13 Pin Electrical Trailer Plug