Features: 1. 3 Pro NDFilter Mirror Set, Multi-Layer Coating Process, , ND8/16/32/64 2. Design, No Effect On Gimbal Calibration, Frame Made Of Aluminum Alloy, Strong And Durable 3. Optical Glass, Non-Destructive Fast Disassembly, Ultra-Clear And Solid Flight Stability 4. High-Definition Light Transmission, Prevent Overexposure, Small And Convenient, High-Precision Adaptation, Anti-Scratch Coating, Anti-Oil And , 5. Oil And Stain Proof, Multi-Layer Coating, Multi-Layer Coating Matting Process Is Used To Restore The Most Authentic Color Description: 1. Size:4.8 x 4.8cm 2. Model:For 3 Pro Four-Piece Set ND8/16/32/64 Filter 3. Material: Aluminum Optical Glass 4.Color: Dumb Black Package Contents: 1 x ND8 Filter 1 x ND16 Filter 1 x ND32 Filter 1 x ND64 Filter 2 x Cleaning 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.