As hitch installers with over 25 years of experience, We have had to rewire countless trailers. Most of the cause for the wiring problems had to do with cut wires, hanging wires, and just wear and tear from the harsh environment. I decided their must be a better way to wire a trailer than what we are using. So I have designed a complete package that protects the wire, encasing it in vinyl tubing for the average Do It Yourselfer to install. It has been tested and installed several times all with rave reviews. The kit currently comes in 2 styles, one for Boat Trailers, and one for most utility trailers. Every thing you need to wire a trailer is included.