Long Lasting , Non-toxic Formula SAFE ON ALL LENSES:Clear is the perfect lens, goggles and mask anti fogger and is safe for all lenses including prescription eyeglasses, sunglasses, paintball masks, snorkel masks, swim goggles, camera lenses, dive masks, gun scopes, binoculars, safety goggles, ski masks and snowboard masks. LONGEST LASTING LENS CLEANER AND ANTIFOG - Z Clear anti fog spray is for larger application or more expensive optics. Equipped with a fine mist sprayer is perfect for any type of lens. (glasses, it is also a great anti-fog for goggles, full face shields, scopes binoculars ABSOLUTELY anything). EASY TO APPLY: Spray a small amount on lens and rub in with your finger until it completely dries (similar to wax on paint), then wipe off with a microfiber or cotton cloth. For this product to work most effectively, it must be reapplied on average every three to five days or every time you clean your lenses. The more you use Clear the better it will work. Use for wet or dry applications. Instructions: Clean the inside of the lens before spraying the anti-fogging agent. Drip 1-2 drops on the inside of the lens and spread evenly with a sponge head. After the natural dryness, rinse the lens with water and dry it. Soak the goggles in the water before swimming, and then play the anti-fog effect after drying. Note: The anti-fog time of the anti-fogging agent is relative, so it is required to spray the anti-fogging agent before swimming. Parameter: Name: Goggle antifogging agent Color:As picture show Size:7.5cm Specifications: 10ml Product List: Goggle antifogging agent*1