EAG 02-09 GMC Envoy Billet Grille Aluminum Polished 8mm Overlay Horizontal Has been tested to have a perfect fit with the OEM grille, followed by extensive polishing. Never Rust! Mirror Finish Polish. Persist in looking amazing for years. All necessary hardware and instruction are included. Enables Easy and Quick Installation 6062 Aircraft-grade Aluminum alloy. 8mm bar width. Horizontal ,Overlay Installation.