Made from stamped metal, this black grille will protect your 12″ P3S shallow subwoofers from the brutal environment of your trunk. Keeps your golf clubs, softball bats, hockey sticks or even baby strollers away from your prized Rockford Fosgate subwoofers. Simply remove the existing trim ring from your woofer, insert the mesh grille, and re-secure the trim ring. Compatible with select models.