Feng Shui Balls Stress Relief Hand Muscle Relaxer Ball 1 Pack (1.5")

Ball diameter: 3.8 cm Approximate weight: 133g/piece Feng Shui Health Exercise Stress Relief Balls (1.5") Mineral Baoding Ball - Yinyang baoding ball is often used in martial arts to improve palm grip strength and stimulate nerves. The heavy weight can give your hands a good exercise Rehabilitation Handball - A simple exercise that can relieve wrist pain and stiff fingers. Helps solve the discomfort caused by excessive use of hands. Perfect for: hand therapy, stress relief, concentration training and strength training.