For more specifications please refer to the instructions; Automatic electric side step immediately deploys and retracts when opening and closing vehicle doors; E1 Electric Running Board Kits come with a Limited Lifetime warranty on materials and construction and a 5 year warranty on the Textured Black Powder Coat finish.; Dual-motor technology comes standard and is reliable in extreme climates; Equipped with easy-to-install, hands-free magnetically-activated door switches that leave the OBD port free for other accessories; 6” all-season, lightweight, durable aluminum running board with anti-slip surface provides a secure stepping area; Integrated LED lights illuminate the running board when deployed, providing additional safety and security; Automatic ‘SAFE-STOP’ engages if an object in the board’s path is detected; Interior bypass switch to manually override automatic deployment when needed; Retracted running board provides optimal ground clearance and protects rocker panel while preserving the look of your vehicle; Up to 600 lbs. per side(for 4 Door-vehicle)