Product selling points: 1.optical glass, precision grinding and polishing, high-definition imaging;2.Adopting a double-sided multi-layer nano coating process, endowing the lens with high-quality waterproof, oil resistant, stain resistant, and scratch resistant performance;3.Made of aluminum frame material, the logo is engraved and , with a black surface frame to prevent light leakage and ghosting;4.The /ND is adjustable, and the light can be adjusted by rotating the gear to select the appropriate luminosity for ;5.A magnetic absorption nano box specially designed for the filters, equipped with a soft sponge inside to prevent the fixed filters from falling off, making it portable for long-distance travelFor MINI 3 PROMaterial: Aluminum alloy (frame)+optical glasscolour: blackPackage Contents:4 x Filter1 x Cleaning cloth1 x Storage boxOnly 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.