Item Type: Action Camera Lens Filter Set Material: Aluminum alloy, optical glass Weight: Approx. 70g/2.5oz Package List 4 x Filters 1 x Storage Box 1 x Wrench 1Application: Tailored specifically for Insta360 Ace Pro action camera, this lens filter set provides more room for wonderful photography and clear recording of beautiful scenery. 2ND Filter: The filter suppresses strong light environments, prevents overexposure, resists scattered light and increases color saturation, thus achieving a more transparent and vibrant image. This results in misty water, night light trails and other cinematic effects, with higher numbers indicating greater dimming effect. 3Eliminating Non Metallic Reflection: The CPL filter enhances color saturation, increases image clarity and expressiveness, and restores true colors. It's perfect for photographing subjects behind glass, clear water, underwater, etc., giving a bluer sky and clearer water. 4HD Coating: Each filter features double sided, multi layer coatings, reducing light reflection between the lenses. This leads to clearer imaging and superior picture quality. 5Water and Fog Resistance: The filter frame contains a gasket that effectively isolates water droplets, allowing worry free creation in underwater, rainy, humid, and low temperature environments. 6Knob Installation: The filter uses the same fixation method as the original lens. By using the provided wrench to twist off the original protective lens and install the filter, water, fog, and drop resistance performance is guaranteed to the highest degree.