Ionic 3" Black (fits) 1999-2018 Chevy Silverado GMC Sierra Extended or Double Cab Body Mount Only Nerf Bars Side Steps (202120) Constructed out of durable 16 gauge carbon steel 500 pound load capacity Ionic Black Nerf Bars come powdercoated gloss black for the ultimate protection against the elements while still looking great. Molded plastic Recessed step for better foot grip 3 Year Warranty - Sold in Pairs, includes everything needed for installation