Stainless Steel Exercise Balls are tools used to practice strength and flexibility in fingers, hands and wrists. By simply holding and rotating the balls, you will not only exercise your hands, but regulate the central nervous system, decrease stress levels, and improve overall health. 

• Smooth surface
• The core of the ball is solid
• Easy to clean
• Content: 2 balls 
• Usually for acupuncture beginners to practice their fingers

*Note: please disinfect with 70% alcohol or other professional use disinfectant.