Excellent Grade Material: Aviation aluminum frame material, carved by , non fading, black matte frame, prevent light leakage to produce ghost. Exclusive Storage Box: Specially designed for filter storage box, the box is equipped with a soft sponge, the fixed filter is not easy to fall, so that you can travel portable. Does Not Affect the Lens cap Installation: The lens protection cap can be installed without removing the filter, providing some convenience for you to protect the filter from damage when storing. Nano Coating: Using double sided multilayer nano coating technology, endowing lenses with waterproof, oil proof, anti scratch performance, for your lens escort. Optical Glass: ACG optical glass is selected for grinding and polishing, high definition imaging, pure and unbiased color, easy to grasp the wonderful moment.