Tyger Auto TG-AM2C20028 Star Armor Kit (for 2007-2018 Chevy Silverado/GMC Sierra 1500 & 2007-2019 2500/3500HD Extended/Double Cab | Textured Black | Side Step Nerf Bars Running Boards) Important: only fit extended or double Cab with 2 full-size front doors & 2 narrow rear doors. Not for Crew Cab with 4 full-size doors.(Please check the Cab size picture.) Tyger unique star metal step pads serve a helpful step in and out of the Cab. Particularly useful on lifted Trucks. Dual girder system provides maximum protection for underside from damaging impacts Up to 300 lbs Weight capacity for each side. Heavy-duty 2inch diameter tubes. One-piece design. Dual stage powder coated textured Black finish Easy bolt-on installation. No drilling required. (Diy instruction included in the package.) Tyger no-hassle 5 year warranty against manufacturing defects