1、CLEAR AND VIBRANT: The polarizing effect of the CPL filter enhances image clarity and color saturation, especially for outdoor scenes with blue sky and white clouds. It also reduces reflections on glass or water surfaces. 2、MULTI COATED OPTICS: The lens filter is made of multiple layers of nano coating, which improves its waterproof, oil proof, anti dust, and scratch resistant properties. The lens color varies under different lighting conditions, adding artistic effects to your photos and videos. 3、PREMIUM MATERIAL: The aviation grade aluminum frame is sturdy and lightweight which will not affect the installation of waterproof shell. The deep gray filter frame prevents light leakage and ghosting. 4、ANTI SLIP GEAR DESIGN: The filter frame has knurled patterns that provide a slip resistant grip, making it easy to install and remove without damaging your camera lens. You can swap filters quickly to shoot different styles of footage. 5、PERFECT FITMENT: This lens filter is designed specifically for Osmo Action 3 cameras, providing a custom fit and reliable protection for your lens. 1 x Filter1 x Cleaning Cloth1 x Carrying Case Item Type: CPL filterMaterial: Aluminum alloy, optical glassWeight: Approx. 27g / 0.95ozFitment: For Osmo Action 3