This specific and extremely effective formula provides a long lasting anti-fogging and anti-silicone action on all types of dive masks and swimming goggles. Technical Features: ? High performance in extremely cold waters. ? Non-abrasive and safe for all lenses and optics. ? Biodegradable and non-toxic. Instructions For Use: 1. Shake the bottle and moisten both sides of the lens with the product. 2. Wait for a few seconds then rinse. 3. Guaranteed Underwater Visibility! Product: Anti-fog Drops Product Code: AL1003 Contents: 30ml