1High Definition Optical Glass: The lens is made of high quality optical glass through high definition grinding treatment, which can produce high definition picture quality. 2Coating Light Reduction Technology: The use of coating light reduction technology avoids the color cast problem of traditional ND mirrors, and there is almost no color cast. 3Multilayer Nano Coating: With double sided multilayer nano coating technology, the lens has waterproof, oil proof, anti fouling and scratch proof performance. 4ND Lens Filter: ND filter can prevent overexposure in strong light environment, resist scattered light, increase color saturation, make the picture more transparent, and achieve a large scale effect. The number after ND represents the dimming ability. 5ND4 to ND32 Variable: The variable ND Filter is adjustable from ND4 to ND32, you can adjust it according to the shooting requirements. A filter includes 4 levels of light reduction capability, which is very practical and convenient, suitable for DJI Air 2S Camera.1 x ND Filter1 x Storage Box