Designed for Air 3: Specially created for Air 3 drones to increase options and stunning shots. HD Optical Glass: Optical glass lenses with high transparency and superb grinding process for a clear and image output. ND1000 Filter: Prevent over exposure and reduce scattered light for better image saturation and picturesque effects such as misty water or light trails in the night. The number after ND represents the light reduction capability. Portable And Easy To Install: Ultra thin aluminum frame with storage box for easy carrying and protection. Snap on installation secures the filter firmly on the drone lens for worry free flying and filming. Nano Coating Treatment: Dual sided multi layered nano coating treatment makes it waterproof, oil resistant, dirtproof, and antiscratch.