Niles RS6 Sandstone Pro Speakers NoFade Protective Paint Weatherproof Design Surpasses Military Standard 883 For Corrosion Resistance Designed For Extreme Environmental Conditions And Both UV Exposure And Water Resistance Proprietary 4-layer Fiberglass Construction Makes The Cabinet Acoustically Inert And Completely Weatherproof Artistically Crafted Cabinet With Shaped MicroPerf Aluminum Grilles Looks Natural And Realistic