Ball diamter:1.5inch/3.8cm
Approxi Weight:133g/PCS
Feng Shui Health Exersice Stress Relief Balls (3.8cm)
Mineral Baoding Ball: Yinyang Baoding Ball is often used in martial arts to improve palm grip strength and stimulate nerves. Heavy weight can give your hands good exercise
Rehabilitation handball: A simple exercise that can alleviate wrist pain and stiff fingers. Assist in resolving discomfort caused by excessive use of hands.
Perfect for: hand therapy, stress relief, concentration training, and strength training.