Features: This aluminum alloy filter mount securely attaches to your action camera while supporting 49mm filters for enhanced light control and creative shoot flexibility. Crafted from lightweight rust resistant aluminum alloy, the frame features a tool less quick release design for effortless filter swaps and maintains stability during high motion activities. Ideal for adventure photographers, travel vloggers, and professional filmmakers seeking to elevates their action camera's optical performances in challenging environments. Perfect for outdoor sports recording, underwater exploration, or dynamic videography where precise exposure control and glare reduction are critical. Unlock advanced cinematography capabilities by stacking multiple 49mm filters – combine for motion blur effects with polarizers to intensify colors and eliminate reflection in sunlit scenes. Specifications: Component: Aluminum alloy, silicone Product Size: 52x7.6mm/2.04x0.29inch Product Weight: 11g Color: Black Package Includes: 1pcs Filter Mount Frame note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.