1Stable Towing: This flexible coil features an expandable design that allows for a variety of towing combinations, maintaining the stable connection between the towing vehicle and the vehicle being towed. 2Performance: The 7 core coiled cable requires no rewiring, effectively controlling the lighting signal between your Rv and the towing vehicle. 3Features: The coiled cable effectively prevents sagging and provides a neat, clean look, the standard 7 core cable is easy to connect to your trailer lighting system. 4Safe Driving: The coil support quick and easy connections and can be retracted to prevent tangling to ensure a smooth driving, giving you a safe and wonderful ride. 5Excellent Construction: Polyurethane wiring and copper wire ensure insulation, providing excellent protection and safety for your use.