Feature 1Available Model: Suitable for 9 10 11 sports camera, to adapt to different needs of the sports camera, to provide you with convenience. 2ND Dimming Filter: ND dimming filter can reduce the amount of light, reduce the shutter speed, prevent overexposure, using coating dimming process, almost colorless bias. 3Advanced Coating Technology: The multi layer nano coating technology gives the lens excellent waterproof, oil proof, anti scratch performance, for your lens escort. 4Anti Slip Gear Design: Knurled pattern is set above and below the frame, easy to install and remove. Installation will not damage the original lens, change the filter at any time, do not let you miss the wonderful moment. The installation of filter will not affect the installation and use of waterproof shell. 5Ultra Light Frame: Aviation aluminum frame material, fastening durable, long service life, black matte face frame, prevent light leakage and ghost; Optical glass lens, accuracy grinding and polishing, high definition imaging.Item Type:ActionCameraNDFilterKitWeight: 36g/1.3ozMaterial: Aluminum alloy and optical glassAvailableModel: for 9 10 11sportscamera .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Filter1 x Storage Box1 x Wiping ClothNoteCleaning notice:If the lenses are contaminated with dust, water droplets or other contaminants, whether they have been removed or not, please keep the following in mind.1. First blow off the dust on the surface of the lens;2. Clean again with a clean brush;3. Gently wipe with the filter cleaning cloth delivered;4. The use of special lens cleaning solution is more ideal;5. Put it in a special storage box when not in use.