1. CompatibilitySpecially designed for Insta360 Ace Pro 2/Ace Pro cameras, it protects the lens and ensures clear images during drone photography. It is an ideal choice for drone enthusiasts who love aerial photography. 2. Dualsided, multicoated optical HD glass: These filters are made of quality optical glass with multiple functional coatings on both sides, making them waterrepellent, scratchresistant, and oilresistant while reducing reflections from the filter itself and the ground. 3. Light reduction effect: The ND filter reduces light intake and extends exposure time. The CPL polarizer restores the true and natural colors of the image. It blocks the corresponding light value for the camera during dynamic outdoor activities to adjust camera parameters for a cinematic look. 4. Easy installation: Ultrafast clipon design, simply snap it on—no need to remove the camera's protective lens, just attach it directly to the camera lens. 5. Durable with embedded damping silicone: Builtin onepiece molded damping silicone ring ensures a secure and stable fit. The silicone ring also protects the camera lens from scratches during filter installation and removal.