FBYY: Therapy Balls Yin Yang (1.25"diam) Gently weighted & delicately chiming therapy balls for exercising & stimulating accupressure points in the hands. Hold both balls in one hand & rotate either clockwise or counterclockwise. Provides comfortable stimulation & helps to relieve stiffness or pain, while exercising all points in the hand. Two Cloisonne Yin Yang balls presented in an attractive gift/storage box.