This eyeglass cleaner has a dual effect: it removes dirt and prevents fogging. ■ 20 packets x 2 boxes ■ Boxes will be shipped folded after opening. Thank you. - Product Name: Eyeglass Cleaner Anti-Fog - Quantity: 20 sheets - Manufacturer: Kobayashi Pharmaceutical - Purpose: Anti-fog for eyeglasses - Features: Dual effect prevents fogging