Car Glass Cleaner: Remove the glass oil film and make glass clearer and more transparent without drop of water. Powerful Cleaning: Remove water stains and oil films on the glass to quickly perfect transparency without polishing. Form a Protective Layer and Waterproof: After cleaning, it will bring a new appearance to your glass and form a protective layer to prevent water droplets from falling off, rain and water. Quick And Easy: window water spot remover, No need to wait too long, just pour the oil film remover into the washer fluid reservoir, add the wiper fluid and proceed to use the wipers as normal to get your windshield clean again. Versatile: The glass oil film remover is also versatile, so it can be used on a variety of different glass surfaces.