Infinity's Marine speakers are constructed of solid, weather-resistant material, put together in the most careful, precise manner will provide you with a musical and listening experience that will keep you attached to your boat. The 6-1/2 speakers feature a polypropylene woofer cone bonded to a tough, UV-resistant rubber surround, which delivers full bass response and does a superb job deflecting sunlight and moisture. The corrosion-proof, cast-polymer basket resists deterioration from salt, moisture, and UV rays, while the stylish non-removable grille is specially meant for retaining its shiny chrome finish. The grille-mounted 1 tweeter offers excellent high-frequency projection. Infinity seals the front of the woofer cone along with the speaker's magnet structure, serving as extra protection against moisture. Stainless steel mounting hardware is not included. Bulk packaging: The products I nthis bundle are Brand New but some are not in retail packaging. Mounting hardware is not included unless specified otherwise in the description.