Roadmaster Flexo-Coil (TM) 4-Round 8' Trailer Connector Extension 1644 19-0798

It fits 4 wire plug and socket. Features rust free connectors and water, oil and chemical resistant wire. It has matching sockets for prewired reversible end connectors. It is tangle free for easy use or storage. Includes plugs, sockets and socket bracket. Coiled wire used to eliminate ground drag.