Hopkins Manufacturing Corporation makes your towing experience simpler and more rewarding through innovation and value. Hopkins offers a variety of towing solutions including vehicle wiring kits, adapters, vehicle and trailer connectors, breakaway systems and much more. Today, more than 40 percentage of retail category sales are generated from Hopkins innovations. Seven pole connectors are typically used with large trailers (RV and industrial). These connectors provide all functions of the 6-pole with the addition of the backup/reverse function.