ProofTech Liquid Glass is a cutting-edge super durable, completely transparent liquid lens protector that bonds to the glass of your camera lenses, eyeglass or sunglass lenses offering greatly enhanced scratch, moisture, and impact resistance. Creates an invisible protective coating that increases the lenses strength to 9H hardness. (does not repair or fix existing scratches) | It's unique formula locks-in the existing costings on your lenses or eyeglasses such as UV coating or anti-reflection coating. | Made of silica dioxide (Si02) which is essentially microscopic particles of glass suspended in a liquid solution. Fills in the imperfections of the lenses and adds an additional layer of glass. | Completely harmless and invisible once applied. | Universal: Compatible with all cameras, eyeglasses and sunglasses. Attention: This product does not fix or repair any existing scratches or cracks.