Hybrid Function - HD Ridez armor functions as both side steps and side bars for rocker panel protection Aggressive Design - Stand out with our square tube & slanted grille plate design for a decidedly off-road look All Weather Design - Covered in raised slots, our 6.5 inches steps let through ice & rain, making them extra grippy Fuel Savings - Improve your truck's MPG by choosing a lighter yet still strong (500 LBS load capacity) set of rock rails Easy Installation - Includes brackets and hardware for quick and fun DIY project; Compatible with Ford F-150 2004-2008 SuperCrew Cab 4 Full Size Door