Keep your lenses and optics clear and free of dust and dirt with Zeiss's AntiFog Kit. This kit includes an AntiFOG cloth and a 15ml AntiFOG spray. Use in combination to clean and protect your lenses. The Zeiss AntiFOG spray adds a thin film similar to a lens coating, which helps to prevent water droplets from forming on your lens. Key Features: Up to 72 hours of protection against fog, Quick and simple to use, No interference with optical quality. What's in the box? Zeiss AntiFOG Spray - 15ml x1, AntiFOG Cloth - 13cm x 13cm.