Bestop 75650-15 PowerBoard NX Retractable Running Board Set for 2015-2018 Ford F-150 Supercrew/Crew Cab; 2018 F-250/F-350/F-450 Crew Cab New 4-motor design puts instant power at each linkage for smoother operation and improved strength Wi-Fi activation so no door wires are tapped and the interior of vehicle cab is not touched or altered as wireless components are placed in the door jambs which send wireless signal to central receiver that open or close the steps as needed Patented high strength, die-cast aluminum linkages built to last in any climate with 600 pounds capacity per side more tools Sturdy 6.25 inch wide aluminum running board features ultra-durable non-slip powder-coated surface Variable-mount LED light kit attaches to linkage or to body and illuminates board and ground below for easier access in and out of your vehicle