Used Roadmaster Proportional braking system for a toe vehicle. Advertised as easy three step setup and has break away system, has transmitter from tow vehicle to motorhome to monitor braking operation. Operates off 12 volt lighter plug in and functions off 12 volt air pump to operate brake pedal, last used last fall. All new system installed at Camperworld to replace this system. Priced at $225, all cables are included. Leave message at 785-421-2701