SODIAL(R) Universal Clip Polariscope Lens HD CPL Professional Filter for All Cellphone iPhone Samsung HTC Tablet etc Universal clip design, suitable for all smart phones. Can significantly reduce the glare and reflection of non-metallic surface to achieve the best desired results. Simple, portable, easy to install. Note: The Flash Light will be blocked when the lens is in use. When to use CPL? To highlight sky and clouds, making sky bluer, clouds clearer. To eliminate reflection from non-metallic surfaces, making clearer photo image and brighter color. To improve color saturation.