1、Optical Glass Lens: The lens adopts high quality optical glass and high definition grinding treatment, high definition sharpness, high definition imaging, to meet the needs of photographers. 2、Light Reduction: Adopting coating light reduction process, avoiding the problem of traditional ND filter color cast, almost no color cast, which can actually reproduce the scene. 3、Multilayer Coating: Double sided and multilayer nano coating technology, the lens has waterproof, oil proof, anti fouling and anti scratch performance, easy to clean and leave no trace. 4、Prevent Overexposure: In strong light environment, filter can prevent overexposure, resist scattered light, and increases color saturation to make the picture more transparent and beautiful. 5、ND Filter Models: There are ND8, ND16, ND32, ND64 four models optional, the number after ND represents the dimming capacity, suitable for Zino Mini Pro lens. Item Type: ND Filter Material: Aluminum Alloy + Optical Glass Weight: Approx. 23g/0.8oz Application: for Zino Mini Pro Lens 1 x ND Filter 1 x Washed Nano Sticker 1 x Storage Box