E-Autogrilles Aluminum Polished 4mm Horizontal Overlay Bumper Billet Grille for 11-13 Toyota Corolla (1PC)(31-0206) Grille insert only as picture shows. Not complete grille, so shell is not included. 6062 Aircraft-grade Aluminum. 4mm 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.