E-Autogrilles Aluminum Polished Horizontal Overlay Billet Grille Grill Insert Combo Kit (Includes Grille/Center Bumper/Lower Bumper Inserts) for 09-13 Chevy Silverado 1500 (36-6104) Grille insert only as picture shows. Not complete grille, so shell is not included. 6062 Aircraft-grade Aluminum. 8mm bar width. Each grille guarantees a polished chrome color front surface.Multiple-step polishing process offers a mirror-like finish. It prevents the off-road elements like road debris such as papers, plastic, broken glasses, stones, etc. from getting into the engine compartment. All necessary hardware included.Provide installation instructions.Overlay Installation.