These ActionTrac running boards by Aries Offroad have a patented step-within-a-step design which makes them perfect for lifted trucks. There is a 4 inch wide step on top and a 3 inch wide step that deploys when a door is opened that is 8 inches below the top step and up to 15 inches below the the vehicle door sill depending on model. This gives you an easy two step up into larger and lifted trucks. It is also ideal for children or elderly passengers. The bottom step retracts back into the main step when doors are closed thus giving plenty of ground clearance when retracted. These steps have safety engineered into them with built in LED lighting that illuminate the step area when doors are opened and integrated control module that detects obstructions to the lower step to eliminate pinching dangers or damage to the lower step. Custom no drill install brackets for each vehicle type insure a strong no rust installation and the running boards are made of weatherproof aluminum with a tough black powder coat finish. Made in the USA! Installation available for an additional $175.