Fangrui Product Details 1. For Insta360 Ace Pro 2 Startrc 4 In 1 Nd16pl Nd32pl Nd64pl Nd128pl Camera Lens Filter 2. Features 3. A Set Of Filters For Insta360 Ace Pro 2, With Multi-layer Coating, Waterproof, Scratch-proof, Dust-proof And Oil-proof, Protecting Your Ace Pro 2 Lens From All-round Damage. This Filter Combines The Functionality Of An Nd And Polarizing Filter To Control The Amount Of Light Entering The Lens, Darkening The Sky While Eliminating Unwanted Reflections From Non-metallic Surfaces Like Water And Glass. 4. 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. 5. 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. 6. The Sleeve Design Is Safer And Quick To Install, And Can Be Tightly Fixed On The Ace Pro 2 During Shooting, With Zero Possibility Of Loosening. 7. Equipped With A Special Set Of 4 Filter Boxes, Which Is Convenient For Storage And Protects The Filters. It Is Easy To Carry And The Filters You Want At Any Time. 8. Package List 9. Nd16pl X 1 10. Nd32pl X 1 11. Nd64pl X 1 12. Nd128pl X 1 13. Cleaning Cloth X 1 14. Color Box X 1