Features: - Foldable design according to stucture of drone. Fix propellers on right position and no pressure to propellers. - Protect Your Fingers. The propeller stabilizer prevents propellers from hurting your fingers. - Not only a propellers stabilizer, it can also protect drone bottom and vision system. - Store drone with the stabilizer in Sunnylife B658 drone bag, B659 combo bag, B660 combo bag, and AQX-10/AQX-11 safety case.