Available Model: Compatible with 9, 10, and 11 series sports cameras, designed to meet various action camera needs and provide convenience. ND Dimming Filter: Reduces light intake, helps prevent overexposure, and allows for slower shutter speeds. Features a coated dimming process with minimal color bias. Advanced Coating Technology: Multi-layer nano coating provides excellent waterproof, oil-resistant, and scratch-resistant performance to protect the lens. Anti-Slip Gear Design: Knurled texture on the frame ensures a secure grip for easy installation and removal. Designed to not damage the camera lens and allows quick filter changes without missing key moments. Compatible with waterproof housing installation. Ultra-Light Frame: Constructed from aviation-grade aluminum alloy for durability and long-term use. Matte black finish helps prevent light leakage and ghosting. Optical glass lens with precision grinding and polishing for high-definition imaging. Package Includes: 1 x Filter 1 x Storage Box 1 x Cleaning Cloth Item Type: Action Camera ND Filter Kit Weight: 36g (1.3oz) Material: Aluminum Alloy and Optical Glass Compatibility: Designed for 9, 10, and 11 series sports cameras