Sports Camera Filters ND Light Reduction Accessories for Insta360 Ace Pro 2 (ND8/16/32/64 Filter 4PCS/Set) Features: 1. Made of high-definition optical glass, which has no effect on the image quality and forms a low refractive index to restore the wonderful moments 2. Double-sided coating, the surface is easier to clean 3. Only 8.5g, compact and lightweight, no burden for traveling 4. Built-in rubber ring in the frame effectively isolates water droplets and water vapor, keeping your Ace Pro 2 lens safe from underwater, rain, humidity and other environments 5. Aircraft-grade aluminum frame is laser engraved with a matte black finish, which is corrosion-resistant and less susceptible to humidity, oxidation and other factors Specifications: Material: Plastic ( Frame ) + Optical Glass Size: 3.53x 3.53x 6.7cm Type: ND8/16/32/64 Filter 4PCS/Set Applicable Model: for Insta360 Ace Pro 2 Package: 4x Filters Note: Only the above package content, does not include other accessories. Due to the light and screen difference, the item's color may be slightly different from the pictures. We guarantee the style is the same as shown in the pictures.