High-definition professional optical glass with high durability and scratch resistance. Multi-layer nano-coating process for clear imaging, meeting high-pixel imaging standards. High-quality craftsmanship ensures the lens is waterproof, oil-resistant, and scratch-resistant. Aviation-grade aluminum frame, firmly sealed, does not affect drone calibration or balance, and resists fading and corrosion. These filters are ideal for capturing professional-quality images in a variety of lighting conditions, helping to reduce glare, increase color saturation, and manage exposure. Elevate your drone photography with this essential accessory kit. Compatible models: O4 Air Unit Pro, Avata 2 Protection features: Waterproof, oil-resistant, scratch-resistant Due to variations between production batches, minor differences in appearance, color, or printed text may occur—these do not affect performance. Color: As shown Material: CNC-machined aluminum + optical glass Package contents: 1 x ND8 Filter 1 x ND16 Filter 1 x ND32 Filter 1 x ND64 Filter Note: Color representation may vary slightly due to lighting conditions and display settings. Measurement tolerance: ±1–3 cm.