1、Weatherproof: The shell is made of weatherproof materials to ensure a longer life and can withstand various harsh environmental conditions such as high and low temperatures, acid and alkali, wear and oil. 2、Premium Material: 7 way plug inline trailer plug is made with fireproof ABS junction box and good electrical conductivity copper solid wire. 3、Easy Wiring: Sturdy junction box with colour coded 7 pole for easy identification, providing you with more convenience in wiring left right turn signals, brake signals, reversing lights, tail lights, etc. 4、7 Pin Design: Trailer cord has a 7 core design, which can stably conduct electrical signals and ensure accurate and efficient signal transmission, making the electrical connection between the tractor and the vehicle being towed more reliable. 5、Wide Application: 7 Way trailer plug harness is suitable for trailers, motorhomes, campervans, caravans, food carts and other tractors with perfect taillights, brake lights, reverse lights, turn signals and auxiliary power connections.