For DJI O4 Air Unit Pro BRDRC Filter Accessories 1. Main material: aluminum alloy (mirror frame) + optical glass 2. Adopt multi-layer nano coating technology to give the lens high-quality waterproof, oil-proof, stain-proof and scratch-proof performance 3. Aviation aluminum frame material, the logo is engraved by laser laser without fading 4. The original lens will not be damaged during installation. Change the filter at any time to prevent you from missing the wonderful moments. 5. The lens is made of nano coating process, and the colors presented by the lenses are different under sunlight and light. 6. Optical glass, precision grinding and polishing, high-definition imaging 7. Net weight: 0.8g (single product), 2.5g (three-piece set), 3.2g (four-piece set), 4.8 (six-piece set) 8. Product size: 2.3x2x0.1cm Notes: 1. Only UV filters can transmit light by 98.5%, and CPLND filters cannot be expressed by light transmittance. 3. The lens will show different colors at the angle of light, and the actual object shall prevail. 4. The individual packaging is ordinary plastic box packaging and non-magnetic box packaging 5. Installation and disassembly will touch the lens and leave fingerprints. Use a cleaning cloth to wipe the lens.