Material: Aluminum alloy + optical tempered glass. Applicable models: GoPro HERO13 Black, GoPro HERO12 Black, GoPro HERO11 Black, GoPro HERO11 Black Mini, GoPro HERO10 Black, GoPro HERO9 Black. ND32 filter with strong light control: By adjusting aperture and shutter speed, you can flexibly set exposure under bright lighting, preventing overexposure and enabling more creative expression in sunny conditions. High clarity and true color reproduction: Multi coated design provides high light transmission while accurately reproducing true colors, helping your videos and photos look natural and vibrant. Use scenarios: 1) Outdoor daytime shooting in bright sun, such as landscapes or sports, to maintain balanced exposure. 2) Scenes with glare from water, snow, or reflective surfaces to preserve detail and color. 3) Backlit or rapidly changing lighting during on the move filming to achieve consistent results.