Glass & Surface Cleaners descriptions We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Tech Nano Anti Fog Wipe Treatment Reusable Cloth For Glasses. 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 How to Use: Exhale on Both Sides of the Lens Wipe Defog It over Entire Surface of Fogged Area for 10 Seconds Keep Cloth Stored in Pouch for Re-use Repeat Steps 1and 2, if Necessary Specifications: Eyewear Accessories: Lens Cloth Item Type: Eyewear Accessories Color: Gray Size: 15.2x 14.8cm/6"x 5.8" Material: Microfiber Package Includes(with Retail Package): 1 Pcx Anti Fog Cloth . Products number : SOMONO88876