Check the listing for details. Baoding Balls 42MM Solid Chrome Hand Exercise Therapy De-Stressor SET OF 2. Color: Silver, Condition: New. Listed at 14.49 USD. 2 metal balls small enough to hold in one hand. They are also known as Chinese "balls for ball practice" exercise balls, Chinese health balls, Chinese meditation balls, Chinese medicine balls. Baoding balls are used by rotating two or more balls repeatedly in the hand. Intended to improve finger dexterity, relax the hand, or aid in the recovery of muscle strength and motor skills after surgery, Baoding balls work similarly to Western stress balls. NO SPECIAL BOX OR CLOTH BAG. JUST GREAT QUALITY AT A LOW PRICE The basic exercise consists of holding a pair of Baoding balls in the palm of one hand, rotating them (switching the relative position of the two balls) while maintaining constant contact between them.Once this technique has been mastered, the rotation speed can be gradually increased until the balls separate in the hand. Eventually one hand can learn to rotate them completely without the balls making contact with each other. Exercises have been developed involving more balls, where the main technique is to avoid contact with the other balls. This requires using a finger, usually the index finger, as a divider.SET OF 2 BALLS / 10.5 OUNCES EACH, IN PLASTIC BAG