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 optimal shutter speed control. 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 protect the original lens and allow quick filter changes without missing key moments. Filter installation does not interfere with the use of waterproof housing. Ultra-Light Frame: Constructed from aviation-grade aluminum alloy for durability and long-term use. Black matte finish helps prevent light leakage and ghosting. Optical glass lens with precision grinding and polishing delivers 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