The Gyro Wrist Ball is a device used to exercise the wrist and forearms in order to build palm, forearm and finger strength.
             
This is a great device used to develop grip strength, coordination, range of motion and dexterity in the hands, fingers, and wrists.  Gyro balls also aid in pain relief and rehabilitation of carpal tunnel syndrome, arthritis, tennis elbow, shoulder injuries, repetitive stress injuries and more.  Up to 30 lbs of torque can be created with speeds of 12,000 rpm.

The Physical Strength Index allows you to test the improvement in your hand strength by incresasing the number of repititions in a 30, 60 or 90 second period.

Gyro Ball Benefits
Rehabilitates sore muscles and joints-allows athletes to recover faster
Increases strenth in fingers, wrists and entire arm-perfect ancellary divice for sports like golf, tennis, baseball, bssketball, bowling, etc.
Increase flexibility in fingers-musicians such as guitarists, pianists and drummers show less hand fatigue