1、Material: The lens body is made of aviation grade aluminum alloy material, and matched with high definition optical glass, which is sturdy and durable, suitable for Hero10/9. 2、Process: Adopting CNC precise machining, surface anodizing treatment, double sided multilayer nanometer coating process, having reliable performance. 3、Performance: Waterproof, anti scratch, anti oil stains, the lens surface forms a protective layer, so that water droplets and oil stains cannot absorb the surface, making it easier to clean and maintain. 4、Applicable Scenes: UV filter is suitable for shooting in the seaside, mountain, snow field and open area, etc, can reduce the blue tint caused by ultraviolet rays. 5、Improve Clarity: For the camera, UV filters can also eliminate the interference of ultraviolet rays on the CCD, which helps to improve the effect of clarity and color reproduction. Item Type: UV Filters Material: Aluminum Alloy + Optical Glass Color: As Pictures Shown Weight: Approx. 18g/0.6oz Application: for Hero10/9 1 x UV Filter