How does Powerspin work?

Powerspin is easy to use: Simply grip it tightly with one or both of your hands and slowly begin to rotate the internal ball around the tube. As you build momentum, the ball will start to gain speed and the muscles in your arms and shoulder will start to work. Depending on the way in which you hold your Powerspin (there are a number of different exercises you can do) and the speed at which you spin it, you can successfully engage a wide range of muscle groups in the arm and shoulder for targeted strengthening, toning and rehabilitation.