Multi-layer coating with high transparency and brightness restores for more exciting photos Waterproof, oil-proof, scratch-, effectively protects the lens CPL and ND/PL are adjustable filters. The golden lens ring can be rotated as needed during to achieve satisfactory polarization requirements and does not increase the load on the gimbal Aluminum alloy frame, sturdy and Name:Lens Filter Applicable:for Air 3S Color: As Shown Material: Aluminum Alloy + Optical Glass Specifications: C: ND8 Package Contents: 1*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.