Aries 365031 Black 4" Wheel-To-Wheel Side Nerf Bar 4 inch elliptical, heavy-wall tube design ; High-strength carbon steel construction ; Durable semi-gloss black powder coat finish ; OE-style bends with blended end caps ; Custom, raised, non-skid step pads ; Extra step pad for reaching into the truck bed ; Brushed stainless steel ARIES insignia ; Easy, no-drill application ; Heavy-duty carbon steel mounting brackets