EASY TO INSTALL With no actuator or hydraulic lines, installation is easier than hydraulic brakes. Electric actuator (sold separately). SELF-ADJUSTING Brakes self-adjust during every forward stop, providing up to 50 percent better braking distance. MULTIPLE OPTIONS – Available in left hand (road side) and right hand (curb side) and multiple wheel sizes and axle ratings. BRAKE SAFETY – Helps prevent premature brake line and magnet wear for safer travels. REPLACE WITH LIPPERT – Lippert helps you take the guesswork out of getting your RV back on the road with exact-match parts designed for your RV. Helps prevent wear and tear.