1. The complete set of filters perfectly fits Pocket 3, with multiple layers of coating, waterproof, scratch , dustproof, and oil , protecting your Pocket 3 lens from all-round damage. It meets the dual needs of ND dimmer and CPL polarizer lenses, and can choose from multiple filter effects during , including ND8/16/32/64/256 and CPL lenses. 2. Each filter is made of high-definition optical glass, which has no impact on image quality. After multiple grinding and polishing, it forms a low refractive index, ensuring the restoration of in the image, and achieving accurate color photography. 3. The aviation grade aluminum frame is laser engraved with a matte black finish to prevent light leakage or ghosting, ensuring that each filter is rigorously tested and does not add extra burden or interfere with the normal of the pocket 3. The weight is only 1.5 grams. 4. Magnetic suction design, quick installation, can be tightly fixed to the Pocket 3, and not fall off during the process. Colour:Photo Color Material:Aluminum alloy + glass Package Contents: 6 x filters(CPL x 1, ND8 x 1, ND16 x 1, ND32 x 1, ND64 x 1, ND256 x 1) 1 x cleaning cloth Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.