Fangrui Product Details 1. For Insta360 Ace Pro Ace Pro 2 Amagisn Ac28 Filter 2. Double-sided Multi-layer Coating Reduces Light Reflection Between Lenses, So That The Image Is Clear And The Image Quality Is Better 3. No Need To Remove The Protective Lens On The Camera, Just Put It On The Camera Lens Directly, Which Is Convenient And Quick 4. Embedded One-piece Damping Silicone Ring, The Silicone Ring Is Firm And Does Not Fall Off, Firmly Fixes The Filter, And Protects The Camera Lens From Scratches During The Disassembly And Assembly Process 5. 1.5mm Thick Glass Lens, No Fear Of Scratches, Drops, Collisions, And High Water Pressure 6. Does Not Block The Field Of View Of The Host Lens, And The Shooting Picture Is Transparent Without Dark Corners 7. The Main Function Of The Nd Filter Is To Reduce The Amount Of Light Entering The Lens, Reduce Overexposure Of The Picture, And Extend The Camera Exposure Time 8. The Cpl Lens Can Eliminate The Reflection On The Surface Of The Object, Allowing The Object To Restore The Original Clarity, Texture And Color Saturation In An Overly Bright Environment 9. Material: Optical Glass + Abs + Silicone 10. Single Size: About 41 X 6mm 11. Single Weight: About 4.2g 12. Note: Only Filters, No Other Features