Also called Baoding balls. They are dated back to Ming Dynasty. Through the process of your fingers moving, the function of brain and internal organs can be strengthened. It is said using these balls it helps blood circulation and to remove fatigue. Putting two balls in one hand and rotating can relax mind and relieve anxiety & stress. Two balls can produce nice sound and they are included in decorative one box. The Exercise balls are made out of metal.
The exercise balls have an inner chime that emits a calming sound when the balls are rolled.
Colors of enamels & designs will vary because of the handmade nature of these items. Each comes in a fabric covered display box with a hinge clasp.