Universal Moto Helmet Anti-fog Patch Film Rainproof Lens Film for Motorcycle Visor Clear Fog Resistant Motor Racing Accessories Installation Steps: 1. Clean the helmet lens with a tool and tear the protective layer. 2. Place the anti-fog film inside or outside the helmet (internal anti-fog, external anti-rain) 3. Gently press the anti-fog film on the lens from the middle to the edge. 4. Completed. Features: Full-frame universal helmet anti-fog patch. Protects vision and eye skin by sterilizing UV rays. After the rain it has been wet, it will not reduce the anti-fog effect, after wiping it with a cloth, it can be used continuously. Suitable for full helmets, half helmets, and open helmets. Specifications: Product name: rain and fog helmet film Size: 24.4cm*6.6, 25*9cm Quantity: 1PC Anti-rain in rainy season, anti-fog in winter, safer riding Package: Anti-fog/rain-proof motorcycle helmet film Notes: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.