optical glass: Each filter is made of precision-ground and polished optical glass to visible light mittance and clear imaging Advanced coating technology: Double-sided multi-layer nano-coating provides excellent water-proof, oil-proof, dust-proof and scratch-proof performance structure: The frame is made of aircraft-grade aluminum, which has excellent resistance and can maintain its quality without fading User-friendly design: The filter is easy to install and remove. The mounting base is firmly fixed and the filter can be quickly replaced without disassembly These filters are perfect for capturing stunning professional-quality in a variety of lighting conditions, helping to reduce glare, increase color saturation and manage exposure. Take your drone p ography to level with this essential accessory kit Applicable models: for Mini 3 Pro Protection performance: waterproof, oil-proof and scratch- (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: CNC+Optical Glass Package Contents: 1 x UV Filter 1 x CPL Filter 1 x ND8-PL Filter 1 x ND16-PL Filter 1 x ND32-PL Filter 1 x ND64-PL Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.