1. Double-sided multi-layer coating, reducing the light reflection between the lenses, clear imaging, better picture quality 2. The frame has a built-in rubber ring, effectively isolate the water droplets and water vapor, allowing you to create underwater, in the rain, humidity, low temperature and other environments without worries 3. Adopt the same fixing method with the original lens, use the matching wrench to unscrew the original protective lens, then screw to install filter, waterproof, anti-fog, drop-proof performance can be guaranteed to the greatest extent 4. 1.5mm thick glass lens, cuts, falls, collision, high water pressure are fearless 5. Does not block the host lens field of view, shooting screen transparent without dark corners 6. The main role of the ND filter is to reduce the amount of light into the lens, so that the screen to reduce overexposure, lengthening the exposure time of the camera 7. CPL mirror can eliminate reflections on the surface of the object, so that the object in the bright environment to restore the original clarity, texture and color saturation 8. Material: ABS + glass 9. Single filter weight: about 8g 10. Size: about 35.3 x 35.3 x 7.2mm 11. Description: only the filter, does not include other items in the picture