High Definition: The drone optical glass ND filter lens adopts premium optical glass, with high definition grinding treatment. Suitable: The drone ND8 ND16 filters are suitable for Mini 3Pro, you can use it for corresponding unmanned aerial vehicle to meet your photography needs. Aluminum Alloy: Made of premium aluminum alloy and optical glass, the drone ND filters set is lightweight, durable, reliable and has a long service life. Quick Installation: The UAV ND filters can be quickly installed and replaced without damage, convenient and efficient for users. Waterproof: The drone ND32 ND64 filters adopts multi layer nano coating process, the lens are waterproof, oil proof, pollution proof and scratch resistant.