Premium Performance: 7 Way Plug Inline Trailer Cord Copper wire with excellent electrical conductivity, has flame retardant performance, safe to use.PVC jacket design, effective waterproof and weatherproof, to adapt to harsh environments. Outstanding Quality Built: The junction box is low profile (2.2inch) rectangular (6.5inch x 3.1inch). Made of high impact, toughness& durability ABS housing. And come with4 open & 4 close rubber fitted grommet and 2 screws. Easy to use: 7-way copper blade molded into a heavy duty plug, and 7-color wire quick identification marks for simple and safe installation. NOTE Maybe there have not to match color and your trailer situation, please confirm the wiring diagram first. 7 Pin Trailer Plug Cord: A must have when connecting and using your trailer in the winter, especially in northern climates where ice, snow, and road de-icer chemicals are tough on trailer cord connector ends. When the trailer parked or not in use, remove the cord and store of the weather. Fit for: Trailer 7-Way Plug Wiring Harness with Junction box is easy to extend your trailer cord, suitable for most RVs, Trailers, Campers, Caravans, Trucks, Food Car and other Towed Vehicles. Overall box dimensions: 6.5inch long x 3.1inch wide x 2.2inch tall Cord dimensions: 6 Feet Colour: black Material: ABS+metal Package Contents: 1 set * Wiring Harness (with junction box and accessories) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.