Cleans Stains from Glass. Removes Soap Scum from Shower Doors. Use On Auto Glass for Water Spots. "Sparkle" Cleaner does those glass cleaning jobs too tough for spray-on cleaners. It removes light water spots and stains in glass caused by weather, sea air or pollution; also removes soap scum from shower doors and ceramic tile. Use it on auto glass to remove water spots from automatic windshield washers. Wipe on with a damp cloth or paper towel, rub stained areas, and then wipe off. Contents of Container: 8 fl oz (237 ml) Important Note: Check can label and Material Safety Data Sheet for any additional limitations and warnings.