BrakeMaster, ROADMASTERs direct proportional braking system, is the best supplemental braking system available, and the easiest to use. Connects directly to the motorhomes air or hydraulic braking system, for rock-solid, reliable braking brake line pressure in the motorhome controls the brakes in the towed vehicle. Because it connects directly to what powers your motorhomes brakes, BrakeMaster is a truly proportional, truly synchronized braking system however you brake the motorhome, BrakeMaster automatically applies the same pressure. Every time. Connects and disconnects from the towed vehicle in under a minute, without any tools, adjustments or settings attach the brake pedal clamp, secure to the floor or seat adaptor, quick-connect the air hose, and youUre ready to tow. Weighs just 3 pounds and measures 17 inches in length stores almost anywhere.