APS iBoard Running Boards 4" Custom Fit 2007-2018 Chevy Silverado GMC Sierra Double Cab/Extended Cab & 2019 2500 HD / 3500 HD (Nerf Bars | Side Steps | Side Bars) Package includes: (2) iBoard running boards, mounting brackets and hardware kit for an easy DIY install SOLID RUNNING BOARD - 100% aircraft grade 6061-T6 aluminum build, iBoard side steps offer the best in corrosion protection, durability, and strength (300 LBS load capacity) FULL COVERAGE STEP PAD - 4" wide corrugated rubber step pad covers the entire running board, providing a secure, slip-proof, comfortable step for the whole family UNIQUE LOOK & DESIGN- Upgrade your truck's style with iBoard's clean, low profile design and look different with iBoard's silver aluminum finish Easy to install Rocker Panel Mount and custom fit for your: 2007-2018 Chevy Silverado GMC Sierra Double Cab / Extended Cab & 2019 2500 HD / 3500 HD