Features: 1. Optical Glass, Precision Polishing, High-Definition Imaging; 2. Double-Sided Multi-Layer Nano Coating Process Is Adopted To Give The Lens High-Quality Waterproof, Oil-Proof, And Anti-Scratch Performance; 3. Aviation Aluminum Frame Material, Logo Engraved By laser-Without Fading, Dark Face Frame, To Prevent Light Leakage And Ghosting; 4./Nd Can Be Adjusted, The Light Can Be Adjusted By Rotating The Gear, And The Appropriate Luminosity Is For ; 5. Magnetic Absorption Nanobox Tailored For The Filters, Equipped With A Soft Sponge Inside, The Fixed Filter Is Not Easy To Drop, Allowing You To Travel And Wide. Description: 1. Name: For Air 2s Filter Series 2. Applicable Model: for Air 2s Note: 1. Only Uv Filters Can Transmit 98.5% Of Light, And /Nd- Filters Cannot Be Expressed By Light Transmittance; 2. Only /Nd- Filter Adjustment, Other Filters Cannot Be Adjusted; 3. Only The Set Filter Storage Box Has A Magnetic Design, And The Single Filter Storage Box Does Not Have A Magnetic Design; Filter Type: B: size: 2.8 x 2.3 x 0.3cm Material: Aluminum alloy (mirror frame)+optical glass colour: grey Package Contents: 1 x Color Box, 1 x Filter, 1 x Lens Cloth / 1 x Color Box, 4 x Filter, 1 x Lens Cloth 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.