1Material: Made of copper and TPU materials, this trailer wire offers high temperature resistance, acid and alkali resistance, wear resistance, and oil resistance for reliable performance in various conditions. 213 Pin Design: With 13 pin, this coiled plug provides superior signal transmission and ensures efficient electrical connections between towing vehicle and the towed vehicle. 312V or 24V Voltage Output: The trailer adapter supports 12V and 24V voltage output, which is suitable for different types of commercial vehicles, trailers, RV, cars, ships and other models to meet different needs. 4Secure Connection: The coiled adapter ensures a secure and stable connection between your vehicle and trailer, minimizing the risk of loose connections or intermittent electrical issues. 5Easy Installation: With a spring wire length of 2M, this trailer coiled plug is easy to install and can be flexibly stretch to fit your specific needs.