The listing, Chinese Exercise Stress Balls Moon Sun has ended.
Stress Balls have numerous health benefits. They are used for stress relief, to improve coordination, prevent arthritis, prevent rheumatism, stimulate blood circulation, help during physical therapy and they are excellent to use during meditation. Stress balls sold here, actually chime to enhance relaxation. There is two of them, one with a sun painted on it and one with a moon. They come in a little blue box.