Can reach up to 9,000 rpm and creates 25 lbs. of torque resistance to increase grip strength and range of motion, and to condition arm, elbow and shoulder muscles.
Aids in the prevention of repetitive strain injuries and carpal tunnel syndrome.
Provides the edge in golf, tennis, bowling or any sport that requires control and a strong grip.
Builds strength, while improving coordination.
Easy-grip outer sphere for better control and prolonged usage.
Does not require batteries.