For Insta360 GO 3S STARTRC CPL Camera Lens Filter (Black Red) Features 1. Customized CPL filter for insta360 GO 3S, multi-layer coating, waterproof, scratch-proof, dust-proof, oil-proof, protect your GO 3S lens from all-round damage. It can eliminate reflections from non-metallic surfaces such as glass and water when shooting, and is often used to shoot scenery behind glass, clear and transparent water, and underwater creatures, etc. It also enhances color and contrast, making the sky bluer and the water clearer, especially suitable for white clouds and blue sky photography. 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 multiple oxidation finishes to prevent light leakage or ghosting, ensuring that each filter has been rigorously tested and will not add extra burden to your thumb camera or interfere with the normal shooting of GO3S, weighing only 1.8 grams. 4. Threaded interface design, quick installation, fixed on GO3S, no need to worry about falling off during shooting. 5. Each filter comes with a filter box, which is convenient for storage and protects the filter, making it easy to carry. Package List 1. CPL x 1 2. Cleaning cloth x 1 3. Storage box x 1 4. Color box x 1