Features: 6pcs/set (ND4+ ND8+ ND16+ MC-UV+ CPL+ Filter lens protector )Lens Filter for 3pro, 3se, 3 4k, Phantom 4 3s. ND4 & ND8 & ND16 Lens filter: ND4 reduces the intensity by two degree, ND8 reduces the intensity by three degree,ND16 reduces the intensity by four degree 1. Reduces the amount of light reaching the film without affecting the color. 2. Applies slow shutter speed under strong sunlight exposure. 3. Allows wider apertures, effectively decreasing depth of field. 4. Shoot more beautiful pictures, landscapes. UV & CPL Lens Filter: 1. A UV filter is used to reduce UV rays from entering the lens and striking the film. 2. CPL filter reduce reflections from non-metallic surfaces, and increases contrast and color saturation, makes image clearer. Filter lens protector: Used to help protect the surface of the lens from scratches, smudges, dirt and other hazards. Specifications: Material: Aviation Aluminum-Alloy, Optical glass Compatible : for DJI 3pro, 3se, 3 4k, Phantom 4 3s. Color: Black Diameter: Approx. 30mm/1.18" Thickness: 7mm/0.27" Case size: 11.5x11.5x1.5cm/4.53x4.53x0.59" Package Content: 1 x ND4 Filter Lens 1 x ND8 Filter Lens 1 x ND16 Filter Lens 1 x MC-UV Filter Lens 1 x CPL Filter Lens 1 x Filter lens protector