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. Hopkins Hoppy Plug-In Simple Adapters take the guesswork out of vehicle-to-trailer wiring. These pre-wired adapters allow the consumer to create a custom plug-in simple wiring system appropriate for any towing situation.