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