Westin 2010-2018 Ram 2500/3500 Mega Cab E-Series 3 Nerf Step Bars - SSWestin(TM) E Series Nerf Bars are made of 3in. diameter round tubing and are vehicle specific designs. Step design and mounting technique varies by application (mounting kit included). They feature recessed area mounted step pads unique to E Series Nerf Bars feature the Westin(TM) brand name and are UV resistant. E Series 3 Round Nerf Step Bars; Dual Step Pad; Polished Stainless Steel; Mount Kit Included; For Mega Cab; 3 in. Round Tube