This product is a magic butterfly that can fly. The operation method is simple. Hold the tail of the butterfly in your left hand and do not move it. Turn the head of the butterfly around 35 times in your right hand, then release your hands at the same time, or clip them in the book to let your friends open the book, and you can see the butterfly flying out. This product is similar to wind-up toy. It does not highlight how far it can fly, but only shows the function and dynamics of flying. It is not really flying, but a push-up force generated by the torsion of rubber bands, the rubber band will fall after the torsion is released. The flight height is about 2 meters and the flight time is about 2 seconds. Do not shoot if you mind.