With box. Size: 13cm. Individual weight: 30g Color: as photos Features: • 1. In situations of stress, anxiety, and distraction, repeated pressure can be used to regulate emotions • 2. Suitable for everyone, a few minutes a day can effectively help you improve your attention and hand eye coordination skills. • 3. It can bring you endless joy and surprise! • 4. You can play anytime, anywhere. Pay attention to this during the development process, and it will be very beautiful and eye-catching anywhere it is placed • 5. Anxiety caused by stress has always been one of the greatest threats to modern human health, but the road is always more than just a problem Due to manual measurement, there may be an error of 0-2cm. Please understan