1Function: This trailer breakaway switch connect your vehicle to your trailer's breakaway battery and trailer brakes. If the trailer becomes disconnected while towing, the cable is released and the brakes are engaged. 2Flexible Design: The flexible cable extends well when towing and maintains enough tension for a more reliable connection. 3Securely Attachment: The included trailer breakaway cable features a nylon pull pin for easy release and a looped end to quickly and securely attach to your trailer hitch. 4Features: Nylon cable is firmly attachedand and can protect your fingers from sharp wire, reduce wear and tear, and keep your trailer safer when towing. 5Performance: Stable performance, high reliability, practical and durable, high strength and not easy to age, you can rest assured to use.