4" OVAL HD SIDE STEP NERF BARS rail running boards 04-08 F150 SUPER CAB/EXT BLK Application: 2004-2008 Ford F150 Super ( Extended ) Cab Models ( Will Not Fit Regular Cab, Super Crew Cab & 04 Heritage Models ) ( Models With 2 Full Size Front Doors With Half Size Back Door & A SMALL REAR SEAT ) 4" Inch Side Step Nerf Bars Heavy Duty Steel With Black Color Powder Coating Plus 3 years Warranty Against Rust And Corrosion, Oval Design Provides A More Secure Area color:Black 465 lbs. Weight rating. Bar is positioned high and tight for a better fit and cleaner look. Professional installation is recommended