Package includes: 2 x 3D animated anti-stress fidget spinners that, when rotated under light, display the engraved character's movement. Your kids will love it! A fantastic toy that can be used to improve children's focus and concentration. Interactive design: The interactive design repeatedly deepens color perception, allowing children to grasp the concepts of balance, rotation, and time during play. How to use: To achieve the dynamic effect where the spinner characters come to life, find a light source, hold the toy with one hand, and spin it with the other. When the device is moving, the optical effect can only be seen through a mobile phone camera. See the video for more details. Controls anxiety and stress: Suitable for people with attention deficits and hyperactivity, but also suitable for students, office workers, and daily entertainment activities. These toys are a great help for adults who need to manage anxiety. Many people have successfully controlled their unwanted habits with this fun and entertaining toy. Simple and safe fun: The simple operation allows children and teenagers to enjoy the calming and stress-relieving effects. You can take it wherever you go, have fun, and enjoy the moment. The spinner is made of safe and environmentally friendly plastic. The shape is round, without burrs or sharp edges, and cares for children's delicate hands.