Dynaflex's Powerball Gyro Exercisers generate up to 38lbs of gyroscopic force at 13,000 RPM's.
This item comes in Blue and features internal LED lights that glow once the gyro is activated... also comes with a training CD.
Powerball gets going easily with the flick of a thumb or a quick pull of its starter cord.
* Rotate your wrist to make the balanced rotor spin faster and
faster, up to 13,000 rpm.
* LEDs glow brighter as the dynamic powerhouse gains speed.
* Its 38 lbs. of gyroscopic force creates progressive resistance.
* Improves coordination while building strength in your fingers, hand,
wrist, arm and shoulder.
* Builds incredible grip strength for discgolf, golf, tennis, baseball,
hockey, bowling, rock climbing, cycling, mountain biking,
motocross, fencing, canoeing, kayaking...