UPGRADE TRAILER WIRING: The trailer wiring junction box is ideal for wiring your trailers, RVs, campers, caravans, food vans and other towed vehicles, it's perfect for connecting tail lights, brake lights, reversing lights, turn signals and auxiliary power. Helps your wiring stay organized, making adding extra lights and accessories, troubleshooting and repairing electrical problems a breeze COLOR-CODED TERMINAL: The wires connection box is equipped with 7 color-coded terminals, which can quickly identify the corresponding functions of the wires and facilitate wiring, keeping all your trailer wiring in order HEAVY DUTY JUNCTION BOX: The premium waterproof and sealed 7 pin trailer junction box is made of thickened reinforced plastic, which is sturdy and durable with a longer service life, and has better sealing against water and sand dust PACKAGE INCLUDING: The electrical cables connection box includes 1 pc junction box with 7 wire studs, 2 pcs stickers, 10 pcs screws, 2 pcs fasteners, 5 pcs open grommets and 5 pcs closed grommets QUALITY ASSURANCE: We are confident in the quality of the trailer junction box, if you are not satisfied or have questions after receiving the product, don't hesitate to contact us