14 Way To 7 Way: This trailer wiring adapter makes it easy to connect a vehicle plug and trailer plug, converts your vehicle's flat 4 way connector to a standard 7 way plug. 2Premium Material: This trailer wiring adapter is made from quality plastic, which is sturdy and durable, preventing oxidation. 3High Conductivity: The brass terminals and tin contact provide high electrical conductivity. The dust cover can protect plug from dust and corrosion. 4Reliable: This trailer wiring adapter provides reliable trailer power supply, suitable for most vehicle wiring components such as turn signals, brake lights, taillights and auxiliary power. 5Easy Installation: This trailer wiring adapter package includes mounting bracket, screws and nuts for convenient installation.