JUNESTAR JSR-1013-10 KB-4IN1 For DJI Osmo Action 4 or 3 Lens Filter CPL or ND8 or ND16 or ND32 Optical Glass Multi Coated Filter 4-in-1 Filter: Including CPL, ND8, ND16 and ND32 filters High-definition professional optical glass with high durability and scratch resistance, multi-layer nano-coating process to ensure clear imaging The multi-layer nano-coating process makes the lens with high-quality waterproof, oil-resistant, stain-resistant, and scratch-resistant properties, restoring true colors The frame is made of aerospace-grade aluminum material, which is securely sealed, light in weight and durable, and will not fade or rust Specifications: Material: aluminum frame and Schott optical glass Applicable models: for DJI Osmo Action 4 or 3 Package included: 4 x Lens Filter (CPLandND8andND16andND32) Other items not included