HS Power 3" Matte Black Side Step NERF Bars Rail Running Boards 99-15 F250 F350 Crew CAB Application: 1999-2015 Ford F250 / F350 / F450 / F550 Super Duty Crew Cab Models ( Fit Models With 4 Full Size Doors Only ) 3" Inch Side Step Nerf Bars Heavy Duty Steel With Flat Black Fine Shimmering Finish Plus 3 years Warranty Against Rust And Corrosion color:Matte ( Satin Black ) 465 lbs. Weight rating. Bar is positioned high and tight for a better fit and cleaner look. Professional installation is recommended