Phenomenon - Place a ring inside a transparent box. - Cover the box with a tube and insert a small sword from the side of the tube, pushing it down. - Then, the sword passes through the ring inside the box. - In addition to the impactful phenomenon, the ring can be borrowed, making the effect outstanding! - And you, who know the secret, will also be surprised by the unexpectedness of the mechanism. Reference videos: https://youtu.be/smiJPvkRAoY https://youtu.be/Qda01891jxw