Thank you for viewing. Cloisonné Balance Balls ❇ These are also called "fitness balls" or "health balls." The design features birds (evoking a sense of good fortune?). ❇ The gentle, pleasant sound and the act of rolling the balls in your palm naturally relaxes and soothes both your mind and body. ・Rolling them in your palm is said to prevent brain aging and improve blood circulation in the brain. ・The sounds, with their yin (low) and yang (high) tones, also help with relaxation. I have stored these at home for a long time. I only touched them briefly when listing them for sale. The outer box shows some fraying. I look forward to your purchase if you understand the condition.