Package Contents: 2 x 3D Animated Anti-Stress Fidget Spinners that, when rotated under the light, represent the movement of the engraved character. Your children will love it. A great toy that can be used to increase children's focus and concentration. Interactive Design: The interactive design repeatedly deepens color perception, allowing children to perceive the concepts of balance, rotation and time during the game. How to use: to get the dynamic effect where the spinner characters come to life; you need to look for a light source, then hold the toy with one hand and spin it with the other. When the device moves, the optical effect can only be seen through a mobile phone camera. More information can be found in the video. Controls Anxiety and Stress: Suitable for people who lack attention and hyperactivity, but also suitable for students, office workers and daily entertainment activities. These toys are a great help for adults who need to control anxiety. Many people have managed to control their unwanted habits with this fun and entertaining toy. Simple and safe fun: The easy use allows children and teenagers to enjoy the calming and stress-relieving effects. You can take it with you wherever you go, have fun and enjoy this moment. The spinner is made of safe and environmentally friendly plastic. The shape is round, without burrs and corners, and takes care of children's delicate hands.