17 to 5 Way Connector: This trailer wiring adapter makes it easy to convert your vehicle's 7 way connector to a flat 5 way trailer connector, eliminate multiple plugs and adapters to tow multiple vehicles. 2Spiral Design: The coil design makes the cable non drag, but allows the extra length needed for tight turns with a trailer, the elastic coiled wire maintains memory and is weather resistant. 3Brass Terminal: The brass terminal guarantees high conductivity. Trailer hitch wiring adapter provides the ground connections, left turn or brake lights, right turn or brake signal, and reverse lights. 4Easy to Connect and Use: This 7 pin to 5 pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring, no splicing required, 7 way plug features 2 handle hooks for a better grip when connecting and disconnecting. 5Plug and Play Design: The adapter converts a 7 way wiring connection from a tow vehicle to a 5 way flat pin connection for towing a trailer, compact design between the wire and plug, for long service life.