1. For Insta360 Ace Pro; used to filter light and improve image quality 2. Multilayer coating: The filter is equipped with multilayer coating, which effectively reduces astigmatism, increases light transmission and clarity of the image, and restores the actual image quality. 3. Waterproof and antifog: The filter has a rubber seal inside that prevents the influence of water vapor and fogging, allowing you to shoot with confidence in different environments. 4. 1.5mm thick lens: The thickness of the filter lens is 1.5mm, which effectively protects the lens and prevents it from being damaged by bumps or scratches. 5. Disassembly tool included: The product comes with a special tool to disassemble the filter, making it convenient for quick removal and installation to avoid damage to the camera lens. 6. CPL filter: Eliminates unwanted nonmetallic reflections, increases color intensity, and improves image clarity. Ideal for capturing skies, white clouds, scenes behind glass, underwater objects, etc. 7. The higher the number of ND filters, the more pronounced the light effect. It provides the camera with the correct exposure value to avoid overexposure. Filters can also reduce astigmatism and improve the color saturation of the image. With a slower shutter speed, special shooting effects can be achieved.