Tactical Goggles Defogger Defogging Fan Anti-fog Kit for Airsoft Shooting Motocross Mountaineering Protection Glasses Ski Mask Product Name:Goggles anti-fog kit Item No.:GG-ACC-01 Product size:15*15*4cm Product net weight:0.174KG Product gross weight:0.238KG Product colour:Black Main material:abs Applicable scene:Hunting, outdoor sports and other Tactical Airsoft Games etc. Features: Adjustable Power Magnetic connection Velcro straps Long battery life Type-C rechargeable Water-resistant With its ease of use and silent motor, the unit will flow cool air inside your goggles and keep the fogging at bay allowing you to focus solely on your game. A velcro layer can be added to the rear of the unit to allow you to add your favorite patch.