TrailFX 4" Oval Tube Side Steps. Constructed from strong Q235A mild steel and coated with a semi-gloss black powder finish, these nerf bars offer excellent durability and resistance to rust. The 4-inch oval straight tube design features two extra-large slip-resistant molded step pads per bar, providing a wider and safer stepping surface for vehicle entry and exit in all weather conditions. With welded end caps for a clean, finished look that prevents debris and moisture intrusion, these side steps mount securely to the rocker panel with included direct-fit steel brackets. Installation requires no drilling and typically takes 30 to 60 minutes. Supporting up to 300 pounds, these nerf bars combine style, safety, and ruggedness for your truck.