Item Type: Camera Filter Material: Aluminum Alloy and Optical Glass Weight: Approx. 71g / 2.5oz Suitable Model: For Osmo Action 3 Package List 4 x Camera Filter 1 x Cleaning Cloth 1 x Storage Box Cleaning Instructions:If the filter is contaminated with dust, water droplets or other contaminants, whether or not they have been eliminated, please keep in mind the following usage instructions1. first blow off the dust on the surface of the filter2. clean again with a clean brush3. wipe gently with the filter cleaning cloth delivered4. use a special filter cleaning solution, the effect is more desirable5. When not in use, put in a special storage box 1Light Reduction Effect: Filter can reduce the amount of light, so that the lens can choose the correct exposure value, prevent overexposure, avoid the traditional filter color bias problem, almost colorless bias 2Waterproof: The use of multi layer nano coating process, waterproof, anti oil, anti scratch performance is excellent, in the sun, the light of the lens presented different colors 3Adjustable Light: Using the motion camera filter, the light can be adjusted by rotating the gear, allowing us to choose the appropriate luminosity for the photo 4Aluminum Frame Material: Logo carved by laser laser, fast fading, dark gray frame, prevent light leakage. The frame is equipped with anti slip gear, easy to install and disassemble, installation will not damage the original lens 5Compatibility: Suitable for Osmo Action 3, add special effects for your camera, more individuality, is an excellent camera accessory