Lippert Forward Self-Adjusting RV Brakes are easier to install than hydraulic brakes, and you never have to manually adjust them after the initial adjustment. These brakes self-adjust during every forward stop, providing up to 50% better braking distance and preventing premature brake line and magnet wear.• Replacement, forward self-adjusting electric brake assembly for RVs• Left hand (road-side) configuration• 3, 500-lb. axle rating• Easy do-it-yourself installation Self-adjust during every forward stop Provide up to 50% better braking distance Help prevent premature brake line & magnet wear | Lippert Forward Self-Adjusting RV Brakes, 10" x 2.25", Left-Side