• The filter is specifically made for DJI Osmo Action 4 action camera lens
• Made of quality aluminum alloy frame and glass, providing long-term durability and good performance 
• ND filter can reduce shutter speed. Eliminates overly bright & washed-out images and captures the beauty of time and movement
• CPL filter can help remove unwanted reflections on non-metallic surfaces such as water and glass, and can also enhance color and contrast. It is often used to increase the contrast and saturation of blue skies and white clouds
• Light in weight, it will not add burden to the camera

Specification:

• Filter size: Φ32.4x6.9mm
• Product material: Aluminum alloy + Glass
• Net weight: 7.5g