Topline Autopart 4" Chrome Side Step Nerf Bars Rail Running Boards For 05-16 Nissan Frontier Crew Application: For 2005-2018 Nissan Frontier Crew Cab Models ( Attention Note: Will Fit Models With 4 Full Size Door That Open In The Same Fashion ; Will Not Fit King ( Extended ) Cab Models With 2 Full Size Front Door & 2 Half Size Backward Door ) 4" Side Step Nerf Bars Oval Style Design Tube, Rugged Frame & Mount Design Tube For Strength & Durability Heavy Duty Polished Stainless Steel, Stainless Steel Tubes Maximizes Rust Protection Color: Polished Stainless Steel