Paintable grille with magnets for quick and easy installation. Slim profile design for flush in-ceiling or in-wall mounting. Sealed back cover to protect speaker and crossover from dust and moisture. Moisture resistant 6-1/2" blue PP (polypropylene) mica cone woofer for high performance mid-low sound reproduction. 1" fluid-cooled soft-dome swivel tweeter delivers pure high frequency with precise sound positioning.