Features: Design for Mini 3 and Mini 3 Pro. [Multi-layer coating] Made of quality glass, the 28-layer coating reduces reflection and is waterproof, scratch-resistant, oil-resistant to ensure high-resolution images. [Light filter] The body is made of plastic material, light plastic design, and the filter weight is only 0.7grams, which does not affect the performances of the drones. Painted black to minimize reflection and reduce the impact on the images. [Quick release design] Easy to assemble, suitable for universal joints, durable. Specifications: Material: Alloy Size: Approx. 2.1x1.6x0.4cm/0.83x0.63x0.16in Type: VND2-5/VND5-9 Applicable Model: for Mini 3 Pro Mini 3 Package Includes: 1x ND Filter note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.