Upgrade your Swarovski Z8i, Z6i, or dS riflescope with the Anti Fog Lens (AFL). This riflescope accessory attaches quickly and easily to the eyepiece, and is outfitted with an integrated eyepiece cover. Once attached, simply activate the AFL at the start of the hunt, after a brief 2 minute startup time the AFL will prevent any condensation from forming on the lens. The AFL is particularly useful in challenging conditions such as rain or snow, and is perfect for driven hunts. Features of the Swarovski AFL: Eliminates lens fogging in cold/wet conditionsCompatible with the Swarovski Z8i, Z6i or dS riflescopes4 hour runtime Swarovski AFL Z8i/Z6i/dS Riflescope Anti-Fog Lens w/Integrated Eyepiece Cover 72300