Tech Nano Anti Fog Wipe Treatment Reusable Cloth Pre-moistened Antifog Lens Cloth Defogger Eyeglass Wipe Prevent Fogging Feature: Wipe your eyewear or visor with the reusable micro-fiber cloth weekly to apply an ultra-effective and long-lasting coat of powerful protection against fog, humidity, sweating and fast temp changes Every Right Rub will lasting over 48hours,can reuse more than 700 times. any eyeglasses,ski/running/motorcycle/bicyling goggles,additional, it can also be used for cleaning LED/LCD/Smartphone/Camera lens etc. This is an optimal safety product designed to ensure you have ultimate clarity while participating in all indoor and outdoor activities, from extreme sports to work projects. Stay safe with this superior no-fog optical solution WARM REMINDER: 1.DONT WASH IT BY WATER AND OTHER WET THINGS. 2.AFTER USE,PUT IT BACK TO THE SEALED POUCH How to Use: 1 Exhale on both sides of the lens 2 Wipe Defog it over entire surface of fogged area for 10 seconds 3 Keep cloth stored in pouch for re-use 4 Repeat steps 1and 2, if necessary Type:Anti Fog Cloth Material: Nano-Microfiber Color: Gray Size: 15.2 x 14.7m/6x 6 Quantity: 1 Pc. Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes(with retail package): 1 Pcx Anti Fog Cloth .