1、Durable Material: The trailer plug cord is made of metal and TPU, ensuring high durability and reliable performance, can withstand harsh environmental conditions such as high and low temperatures. 2、Multi Core Design: The wire trailer plug adapter features a 7 core design that can stably transmit electrical signals, ensures accurate and efficient signal transmission. 3、Wide Voltage Adaptability: The trailer cord supports 12V and 24V voltage output, suitable for commercial vehicles, trailers, RVs, sedans, and boats. 4、Efficient Performance: Featuring a spring design, it allows for natural extension and retraction, providing convenience during usage while reducing the potential of wire tangling. 5、Stable Signal Transmission: Designed for stable signal transmission, this coiled wire ensures a consistent connection for your vehicle while on the go, creating a safe and reliable towing experience. Item Type: Trailer Plug Cord Material: Copper, TPU Core: 7 core Voltage Output: 12V 24V Features: High and low temperature resistance, acid and alkali resistance, wear resistance and oil resistance Application: Connect and conduct the electrical signal between the tractor and the towed vehicle Fitment: Fits for commercial vehicles trailers RV cars ships Function: PIN 1 - Left turn signal PIN 2 - Fog Lamp PIN 3 - Loop PIN 4 - Right turn signal PIN 5 - Right tail light and frame light PIN 6 - Brake light PIN 7 - Left tail light and frame light 1 x Trailer Plug Cord