$10 · Ying Yung Baoding chime balls ( Chinese )

See Amazon link below. Health ball is a traditional folk fitness equipment for muscle therapy and hand massage. Hand movement is beneficial to the brain, relieves stress, eliminates tension and helps concentration, promotes hand blood flow. Diameter 3.5 cm Rolling both light-weight balls around in your hands, either clockwise or counterclockwise, stimulates the acupressure points in your hand and fingers.