You use your wrist in a circular motion to generate the force to continually increase the speed, which in turn acts with a greater resistive force against your body. The Powerball can be used by anyone with hands big enough to grip it. The speed of the device the forces generated against your arm build as well. NSD Powerball is a dynamic new fitness product that is set to absolutely revolutionise the way you exercise your wrists, arms, shoulders and chest! The gyroscope will respond with a rolling action and the speed of the device the forces generated against your arm build as well. NSD Powerball is a revolutionary new Gyroscope which literally explodes with mind numbing inertial forces once you activate its internal rotor! The Powerball gyroscope can aid those athletes in disciplines that require strong arms, shoulders or grip. The Powerball can be used in a rehabilitation manner for arm and wrist injuries or to help with Repetitive Strain Injuries. What do you want from your NSD Powerball today? - World Appeal - Totally non-impact at low speeds and medically recommended, NSD Powerball is a revolutionary new Gyroscope which literally explodes with mind numbing inertial forces once you

    NSD Powerball S.A. - NSD Powerball S.A.
    - The All-Original NSD Powerball in South Africa with a Powerball.The Official Copyright © 2007 - NSD Powerball South Africa .NSD Powerball S.A

    NSD Powerball Gyroscope for sports and fitness, carpal tunnel, tennis elbow, tendonitis, wrist pain and grip ...
    powerball gyroscope for sports and fitness, carpal tunnel, tennis elbow, tendonitis, wrist pain and grip strength Introducing the NSD Powerball - one of