APS iBoard Running Boards (Nerf Bars | Side Steps | Step Bars) for 2002-2013 Avalanche 1500 (w/Body Cladding) & 2000-2018 Suburban 1500 / Yukon XL 1500 | (Silver 4 inches) Innovative Patented iBoard Design Inspired by Smartphone Style, Deliver an Unique, Outstanding, Functional Appearance to your Vehicle. Massive 4 Inch Wide Solid One Piece Bars, Provides a Wider step area for Secure Footing. Hairline Texture Polished 6061-T6 Aircraft Aluminum Boards, the Highest Standard of Rust and Corrosion Resistance. iBoard Surface Covered with Full Length, Premium Quality UV Resistant Non-Slip Rubber Pad. Easy DIY Body Frame Mount (No Drilling Required) and custom fit for your: 2002-2013 Avalanche 1500 (w/ Body Cladding) & 2000-2018 Suburban 1500 / Yukon XL 1500 (Excl. Z71 & Denali)