Unmatched Optics: Each of Freewell 4K Series optics are handcrafted precisely made compatible with with Hero11, Hero10, Hero9 Black GimbalSafe: Freewell GimbalSafe technology ensures each filter frame goes through a rigorous lightweight test putting no negative effect even when you use our filters on drones & gimbal. What is included:NV Storage Protection: Each filter comes with a robust magnetic filter case.