POWERBALL Blue 250Hz PRO with Ref Counter

What is the POWEREBALL?

The NSD Powerball is a Gyroscopic Hand, Arm and Shoulder Exerciser, Strengthener and Rehabilitator!

Challenge your friends, who can spin it the fastest!!! Lots of fun and get some exercise in the mean time.

 Using a starter cord (and instructions provided) to start the internal rotor spinning, you will grip the Powerball firmly in your hand, and with circular or swinging motions of your hand or arm you will keep the internal rotor spinning to generate a constant smooth gyroscopic force of whatever speed/magnitude you choose. The faster you spin the rotor the more force it'll generate and the stronger your grip on it will need to be.

By using the Powerball and generating the constant pulling or pushing forces that you 'fight' against to keep it going, holding and using it in certain positions and motions can strengthen and exercise specific muscles, groups of muscles, and joints.

        WARNING - THESE DEVICES CAN BE ADDICTIVE!!!