1、Professional Design:Specifically constructed for the Insta360 Ace camera, offering more recording space for photography while vividly documenting the beautiful scenery around you. 2、ND Filter: Greatly suppresses the light in strong sunlight environments, preventing overexposure, resisting scattered light and enhancing color saturation to enrich the image and record magnificent effects such as misty water and night light tracks. 3、CPL Filter: Improves color saturation, enhances the clarity and expressiveness of the picture and restores true colors. Ideal for recording objects behind glass, clear water and underwater creatures. 4、HD Coating: The filter features an advanced double sided multilayer coating to decrease light reflection between lenses, resulting in clear imaging and outstanding picture quality. 5、Water and Fog Proof: The lens frame has built in sealing rings to effectively isolate water drops and humidity contents, enabling you to create worry free in underwater, rainy, humid, and cold environments. 6、Easy Installation: Same installation method with the original. Use the included wrench to detach the original protector and then install this filter to use. Easy setup for quick recording at no time. Item Type: Action camera lens filter Material: Aluminium alloy, optical glass Weight: Approx. 74g / 2.6oz Fitment: Fit for Insta360 Ace 4 x Filter 1 x Storage Box 1 x Wrench