Features: 1.Perfectly adapted to the ACTION 5 Pro / 4 set of filters, multi-layer coating, waterproof, scratch-proof, dust-proof, oil-proof, to protect your ACTION 4 lens from all-round damage. Meet the double demand for ND scrim and CPL polarising lenses, you can choose from a variety of filter effects when shooting, including ND/8/16/32 and CPL lenses. 2.Each filter is made of high-definition optical glass, which has no effect on the image quality, and has been ground and polished many times to form a low refractive index to ensure the true colour reproduction of the image for colour-accurate photo shooting.
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