7 to 7 Pin Trailer Adapter: Specially designed for 7-pin trailer, it fits perfectly with 7-pin trailer, making your connection and use extremely convenient and giving you a worry-free driving experience. 2M Extension Cable: This trailer adapter has a total length of 2 meters and can effectively be extended by about 1.7m. You can adjust the length of the retractable spiral cable according to your needs to connect different types and sizes of trailers. High-quality material: The trailer cable adapter is made of high-quality copper and complies with ISO1724 and ISO11446 certification standards, ensuring a stable electrical connection between the vehicle and the trailer. Impact-resistant plastic: The 7-pin trailer adapter is equipped with a waterproof seal, making it wind and rain resistant, durable and well insulated. Provides you with a stable and reliable electrical connection even in extreme weather conditions. At the same time, it has characteristics such as temperature resistance, acid and alkali resistance, wear resistance and oil resistance, which ensures a long service life. Suitable for 12V/24V systems: This car trailer adapter is a high-quality electrical connection cable specially designed to connect the on-board networks of vehicles and trailers. Whether it's a commercial vehicle, trailer, camper, car or boat, it does the job effortlessly and makes your driving safer and smoother.