APS iBoard Running Boards Style Custom Fit 2007-2017 Ford Expedition EL Sport Utility 4-Door (Nerf Bars | Side Steps | Side Bars) Package includes: (2) iBoard running boards, mounting brackets and hardware kit for an easy DIY install Heavy Duty 6 inch Wide Running Boards has Raised Ends that Act as Mud Guards Made from Aircraft grade 6061-T6 Aluminum, the Board and Metal Ends are Weld Together for Seamless Integration - Guaranteed to Stay On Forever Full Length and UV Resistant Grooved Rubber Step Pad for Secure Footing and Anti-slip Protection Easy to install Rocker Panel Mount (No Drilling Required) and custom fit for your: 2007-2017 Ford Expedition EL Sport Utility 4-Door Corrosion resistance - salt spray test Weight capacity - load stress test UV resistance - accelerated weathering test Anti-slip protection - rubber friction co-efficient test APS - custom manufacturer of car and truck accessories since 1995 Magnus - the first choice for fender flares, and trailer hitches Tonnomax - the first choice for tonneau covers and bed accessories iArmor - the first choice for Jeep accessories iGrille - the first choice for billet grilles inserts