1. Designed specifically for DJI Flip, it fits the lens tightly and has no effect on gimbal calibration. 2. Reduces light reflection from the lens, is scratch-resistant, waterproof and oil-resistant, and has better image quality. 3. Made of high-definition optical glass, it has no effect on image quality, forms a low refractive , and restores wonderful moments. 4. Only 0.3g, small and light, no burden on travel. 5. The aluminum frame is engraved with a matte black finish, strong corrosion resistance, and is not easily affected by factors such as humidity and oxidation. Main material: aluminum alloy (frame) + optical glass Attribute: black Net weight: 0.3g (single piece)/1.5g (4-piece set)/2.2g (6-piece set) Gross weight: 21.3g (single piece)/22.8g (4-piece set/6-piece set) Product size: 1.88*1.59*0.18cm Packaging size: 6.5*6.5*2cm Single piece: filter*1 glasses cloth*1 Four-piece set: filter*4 glasses cloth*1 Six-piece set: filter*6 glasses cloth*1 Packing method: boxed