The Aries ActionTrac Running Boards feature an innovative step-within-a-step design for improved safety. These boards operate with integrated smart sensors that automatically deploy the power step 8" when the door opens--which is up to 15" below the doorsill, according to the company. The ActionTrac running boards mount using pre-existing factory holes, eliminating the need for drilling and reducing installation time. These running boards are constructed from powder coated aluminum.