Lifestyle

The manufacturers describe this gadget as "the world's most powerful hand gyroscope, generating speeds of over 16,000 rpm! Simply by starting up the Powerball in your hand and rotating your wrist faster you can develop incredible speeds and increase your strength".

The device records the total revolutions, real time revolutions, and highest scores in a set time period. It is a physical strength measurement gizmo that puts you in competition with yourself.