The CPL filter is applicable for GoPro Hero9.With the light filtering effect, it can reduce non-metallic reflections, and improve image clarity and presentation.The embedded silicone pad can ensure stability and protect the lens.Made of Aluminum alloy, the outer frame is corrosion-resistant, practical, and durable.Environmentally-friendly aluminum-silicon tempered glass is used, which makes the product durable and scratch-resistant, meeting the high-pixel imaging requirements.The double-sided waterproof and oil-repellent coating layer allows the lens surface to form a protective layer similar to the surface of a lotus leaf, making it easier to clean.One-click operation is simple and convenient for you to install, without any complicated step.Item Name: CPL FilterMaterial: GlassCoating: Double-sided Anti-reflective CoatingFeatures: Corrosion-resistant, Waterproof, Oil-repellent, Scratch-resistantSize: 38mm x 38mm x 7mm/1.50" x 1.50" x 0.28" (Approx.)Note:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension differences due to different manual measurements.Package Includes:1 x CPL Filter (Camera Not Included)