1.target model:for Avata 2 drone with optical glass. 2.material: aluminum alloy + optical glass, multi-layer coating can filter out UV and stray light for clearer image. Made of optical glass, high optical effect and effectively reduces lens flare. 3.Reduces the amount of light entering the film without affecting color, for a more perfect color rendition. In a variety of environments, they allow you to take beautiful pictures without degrading image quality. 4.ND/PL Filter: This is a compound filter combining an ND lens and a PL lens. It meets the needs of photographers who want to reduce exposure and non-metallic reflections. This filter combines the advantages of both filters and is a tool for landscape photography. 5.ND/PL light-reducing polarizer combines the advantages of ND light-reducing filter and CPL polarizer, which can reduce the amount of light entering, enable the lens to select the correct exposure value, and prevent overexposure. Applicable products:for Avata 2nd generation (Due to different batches, the printed words on the product may be different, but this does not affect use) Colour:Black Material:Aluminum alloy type:ND16PL Package Contents: 1 x NDPL Lens Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.