Sven Can See Anti-Fog Spray Gel comes in a 0.338 oz. (10 ml) pen-like applicator. Sven Can See Anti-Fog can be used on Sunglasses, Snowshoe and Ski Goggles, Snowmobile Visors, Hockey Visors, Shooting and Hunting Glasses, and Safety Glasses. The Sven Can See Anti-Fog is also useful for water sports on Scuba and Snorkeling masks, swimmers goggles and when sailing with sunglasses on. Actually Sven Can See Anti-Fog is great for any application when wearing eye-protection or eye wear including construction work, first responders, ballistic police, military, firefighters, search & rescue workers and the list goes on-and-on. Best for non-prescription lenses. Designed for extreme cold conditions -20 F to 20 F (-28.9 to -6.7 ) but equally as effective in normal temperature ranges and high heat.