ZoN Hand Exercise Ball - Strengthen Grip & Relieve Stress - Perfect for Rehabilitation, Therapy & Fitness - Use at Home, Office or Gym

Improve your grip and massage your hands and fingers at the same time with the ZoN Hand Exercise Ball. They may not get the same attention a great set of abs does, but strong hands and fingers are every bit as useful. Remember that last jar you tried to open? The ZoN Hand Exercise Ball is a hand massager & finger exercise ball in one handy piece of equipment. It helps strengthen your hands, fingers and forearms while simultaneously providing a soothing massaging action. This is the perfect tool to strengthen areas that can be susceptible to stiffness, joint pain and repetitive stress injury. It is also the world's best stress reliever.