Features: Comet Bleach Powder attacks your tough-cleaning problems in kitchens, bathrooms, and throughout your house. This all-purpose cleanser cleans and deodorizes. Safe for porcelain, stainless steel, fiberglass, solid surfaces, natural marble, and ceramic tile. Does not scratch. KITCHEN Sinks & Countertops - brightens, cleans & puts the glisten back on stainless steel. Cleans tough and crusty food stains. Cuts grease and and scours off cooked-on foods.