✓Product Lifetime: 400 uses or up to 6 months ✓Size: 15cm x 17cm ✓Compatibility: Eyeglasses, Safety Glasses, Face Shields, Ski Masks, Hockey Visors, Mirrors, Swim Goggles, Snorkeling Masks, Sport Goggles, Motorcycle Visors, Binoculars, Cameras and much more. It works on plastic lenses and glass lenses, including Anti- Reflective Super hydrophobic. ✓Soft Microfiber (scratch-free safe for all types of lenses). Tired of glasses fogging up while wearing a mask, face shield or safety goggles? Tired of trying different products and throwing money down the drain? Ø FOG is the answer. Anti-Fog Cloth Main Features: Our reusable anti-fog microfiber cloth is designed to work on all lenses available on the market plastic and or glass. Simply wipe both sides of clean lenses with infused Ø FOG cloth return to its re-sealable bag. Each application lasts up to 12 hours which makes it easy and convenient. Ø FOG is ideal for mask wearers, medical workers, sports enthusiasts or shoppers. Instructions: Apply to CLEAN lenses Wipe both side of lens with infused Ø FOG cloth. Store in re-sealable bag. Do NOT wash cloth as it is infused with a treatment. Keep away from liquids. This is not a lens cleaner, it is an Anti-Fog Treatment. Please make sure lenses are clean before wiping glasses. We're a family-owned Canadian optical supply company that wants to help you enjoy a clearer vision. If you have any questions, please let us know. We'd love to help you out.WORKS GREAT WITH PPE: Provides great results for anyone wearing a mask with glasses, safety goggles or face shields. SAFE FOR ALL TYPES OF LENSES: Eyeglasses, Safety Glasses, Face Shields, Ski Masks, Hockey Visors, Mirrors, Swim Goggles, Snorkeling Masks, Sport Goggles, Motorcycle Visors, Binoculars, Cameras and much more. REUSABLE: Our cloth lasts up to 400 uses or 6 months. EASY AND CONVENIENT: Each application lasts up to 12 hours which makes it easy and convenient. Ø FOG is ideal for mask wearers, medical workers, sports enthusiasts or shoppers. ANTI FOG CLOTH: Our reusable anti-fog microfiber cloth is designed to work on all lenses available on the market plastic and or glass.