Feature: 1. Premium Material: Premium optical glass, aviation aluminum frame, precision grinding and polishing, high definition imaging; double sided multi layer nano coating process, restore the true color. 2. Simple Installation: The mirror edges are designed with non slip, easy to change and tighten the filters to improve the ease of operation. Installation will not damage the original lens, change filters at any time 3. CPL Filter: Filter to remove dazzling, polarizer can eliminate harmful reflections, improve image clarity, increase color saturation, such as blue sky, white clouds, etc.; eliminate reflections on glass or water. 4. UV Filter: UV lens can effectively attenuate the blue tint caused by UV rays, increase the transmittance and make the picture quality clearer, and it is also a lens guard lens. 5. ND Filter: ND reduces the amount of incoming light to avoid overexposure, and can also resist scattered light, improve the color saturation of the picture, make the picture more transparent and colorful, and when shooting video you can reduce the shutter speed through the light reducing lens. 6. Oil Resistance and Waterproof: Professional circular polarizing filters are oil resistance and waterproof on both sides to protect the lenses from the external environment. The CPL circular polarizing filter is adjustable, the light can be adjusted by rotating the gear to choose the right luminosity for shooting. Specification: Item Type: Lens Filters Material: Aluminum Alloy, Optical Glass Filter: UV, CPL, ND16. Package List: 1 x UV Filter1 x CPL Filter 1 x ND16 Filter 1 x Storage Box 1 x Cleaning Cloth