1、CPL Polarizer Filter: CPL filter can effectively eliminate polarized light, restore the most real color of the scene, and make the sky bluer and water more transparent. 2、ND Dimming Filter: The ND filter can effectively reduce the exposure, so as to extend the shutter speed, you can take a shocking picture of the crowd, flowing water like silk, white clouds like cotton. 3、Optical Glass: The lens is made of premium optical glass, with multilayer coating on the surface, highly uniform refractive index and high refractive index, color fidelity and no dark angle. 4、Aluminum Alloy Frame: The filter frame is made of aluminum alloy to prolong the service life of the filter, ensure the hardness and reduce the weight. 5、Silicone Protection: The part in contact with the lens is made of silicone, which can effectively protect the camera lens while having a fixed effect. Magnetic suction design, which can be automatically adsorbed with one click, and the installation is faster. 1 x CPL Filter1 x ND8 Filter1 x ND16 Filter1 x ND32 Filter Item Type: Action Camera Lens Filter SetMaterial: Aluminum alloy, optical glassGross Weight: 64g / 2.3ozApplicable Model: For DJI Osmo Action3