1、Professional Design: CPL filters are specially designed for ACTION3 4 cameras, perfectly matched with the camera, bringing more creative space for photography and clear recording of beautiful scenery. 2、High Definition Coating: CPL filters are coated with high definition coating to enhance the clarity of the filters, and the anti scratch coating design prevents the surface from being scratched. The filter is also filled with an oleophobic layer, which can condense beads when it meets water to prevent oil from adhering. 3、Eliminate Non Metallic Reflections: CPL filters can eliminate non metallic reflections, enhance color saturation, make the image more transparent, and increase the clarity and expressiveness of the image. It can restore true colors, make the sky bluer and the water clearer, perfect for shooting scenes such as scenes behind glass, clear and transparent water and underwater creatures. 4、Convenient To Carry: CPL filters are lightweight and come with a storage case, making it easy to carry the filters in your pocket or backpack. Whether you are traveling or shooting outdoors, you can easily carry and store your filters. 5、Thin And Lightweight Frame: The frame of CPL filters is made of aerospace grade aluminum, which seals the frame securely and makes it easy to clean dust and stains. The frame is very thin and durable, which can protect the lens in all aspects and will not fade or rust. Item Type: Action Camera CPL Filter Material: Aluminum, Optical Glass Weight: Approx. 29g / 1.02oz Applicable Models: For Action 3 4 Sports Camera 1 x Action Camera CPL Filter 1 x Storage Box