Check the listing for details. HOT 7/8/10 ft Trailer Cord 7 Way Plug Inline Junction Box Wiring Harness Kit USA. Condition: New. Listed at 8.99 USD. FEATURES:Easy to Install: Three sizes of 7-way copper blade molded into a heavy duty plug, provides a fast and simplified way for wires connection as well as keeping all your trailer wiring in order.High Quality: Made of high end pure copper and include multiple smart features safeguarding against incorrect voltage, short circuit and internal overheating.Great Performance: Provides safe and secure trailer install, 4 open & 4 close rubber fitted grommet and 2 screws, making the whole junction box waterproof, dustproof and corrosion resistant.Durability: Weatherproof and corrosion resistant wire kit. Wide Application: 7-Way Trailer Plug can be used for RVs, trailers, caravans, food vans, campers, and other towed vehicles. SPECIFICATION:Trailer Cord Length: Only Trailer Junction Box Or 7ft / 8ft / 10ft 7 Way Electrical Trailer Junction Box Kit （According to your choice）Wiring Style: 7-Way (7-Pole) Junction Box Dimensions: 6.5 x 3.1 x 2.2 inches Materials: Copper + ABS+ PVC + Rubber