STARTRC 4-Pack Filters Set Lens Filter Kit CPL Filter + ND8/ ND16/ ND32 Filter Aluminum Frame Optical Glass Waterproof Scratch-resistant Anti-reflective Multi-layer Coatings Compatible with DJI Action 4 Features: 【Fully Compatible】This comprehensive filter set is designed to be fully compatible with DJI Action 4, which includes ND and CPL filters, providing a range of filter effects to select from. 【Multi-layer Coating】The layered coating offers waterproof, scratch-resistant, dustproof, and oil-resistant protection, shielding your DJI Action 4 lens from comprehensive damage. 【High Definition】Each filter is crafted from high-definition optical glass that maintains image quality, creating a low refractive index and ensuring the image's true color reproduction. 【Good-grade Aluminum Frame】The aluminum frame is engineered to avoid light leakage or ghosting. Each filter is rigorously tested to ensure it doesn't impose additional weight on your camera. 【Secure Buckle Design】The secure buckle design ensures a safer and faster installation. It can be securely attached to the camera, eliminating any chance of loosening. Specifications: Brand: STARTRC Suitable Model: DJI Action 4 Material: Aluminum Alloy + Glass Filter Model: ND8/ ND16/ ND32/ CPL Item Size: 33 * 33 * 5.7mm Item Weight: 4.2g Packing List: 3 * ND Filters 1 * CPL Filter 1 * Storage Box