Absolutely Clear Mask De-Fog The worlds best all day no-fog gel for masks and goggles. Cleans the lens so there is nothing for the condensation to adhere to thus preventing fogging and making your dive more enjoyable. Simply apply a small amount to the inside surface of the dry lenses of of your mask, let it dry and then buff it for clear vision. It is recommended as part off your pre-dive and pre-snorkel preparations. Don\'t let a foggy mask ruin your dive! Features: One application is guaranteed to work all day. Lightweight,waterproof and resealable container Colour Clear Pleasant scent. 4 oz container 100% Biodegradable 100+ uses per container