For GoPro HERO13 Black STARTRC Quick Release 4 in 1 ND8 ND16 ND32 CPL Lens Filter Features 1. A set of filters that are very suitable for GoPro HERO13, with multi-layer coating, waterproof, scratch-resistant, dust-proof and oil-proof, protecting your HERO13 lens from all-round damage. It meets the dual needs of ND filter and CPL polarized lens, and you can choose a variety of filter effects when shooting, including ND81632 and CPL filter. 2. Each filter is made of high-definition optical glass, which has no effect on image quality. After multiple grinding and polishing, it forms a low refractive index to ensure the restoration of the true color of the image to achieve color-accurate photo shooting. 3. The aviation-grade aluminum frame is laser engraved with a matte black finish to prevent light leakage or ghosting, ensuring that each filter has been rigorously tested; lightweight design, no burden on shooting. 4. The quick-release silicone clip design is safer and quicker to install, and can be tightly fixed to the camera during shooting, with zero possibility of loosening. 5. Equipped with a special 4-pack filter box, which is convenient for storage and also protects the filters. It is burden-free to carry and you can change the desired filters at any time. Package List 1. ND8 x 1 2. ND16 x 1 3. ND32 x 1 4. CPL x 1 5. Storage box x 1 6. Color package box x 1