Feature: 1. High Definition Optical Glass: Made from optical glass, this ND filter maintains exceptional image quality and low refractive index, ensuring your stunning moments are captured with clarity. The double sided coating makes the surface easy to clean. 2. Water Protection: Featuring an inner rubber ring on the filter frame, this ND filter effectively seals out water droplets, providing protection for your lens in underwater, rainy, or humid environments. 3. Matte Black Finish: The matte black finish of the filter resists impacts from humidity and oxidation, ensuring longevity and consistent performance regardless of environmental conditions. 4. Enhanced Light Control: This ND filter reduces the amount of incoming light to prevent overexposure, while also blocking scattered light to enhance color saturation. This results in vibrant, more vivid images and videos. 5. Improves Video Filming Flexibility: By allowing lower shutter speeds, the ND filter provides videographers the creative flexibility to achieve smoother, cinematic motion in a variety of lighting conditions. Specification: Item Type: ND Filter Material: Aluminum Alloy + Optical Glass Application: for Action Camera. Package List: 1 x ND Filter1 x Storage Box1 x Wrench