The Powerball can be used by anyone with hands big enough to grip it. Powerball's are rapidly gaining a reputation as being fun, multi facetted exercise device that can be used by people from any walk of life and in a multitude of situations.Fitness - NSD Powerball is a dynamic new fitness product that is set to absolutely revolutionise the way you exercise your wrists, arms, shoulders and chest! This all sounds very high tech, but it is a very clever piece of applied science using the theory behind gyroscopes and the principle of precession. The fact that you'll go "wow!" the first time you put a live one into your hand and then find it impossible to put down again is merely the icing on a very sweet cake! :-)Powerball is a new, addictive, multi-facetted device that is spreading across the world and it may just end up rivalling the Rubik cube! It's a handheld device that can be used to help with Golf, Baseball, Tennis, Hockey or Squash building arm strength and in such sports as climbing, rowing, mountain biking or motocross working fingers, hands, wrists, forearms and shoulders. For more reasons than one, the Powerball Gyroscope has a multitude of situations.Fitness - NSD Powerball is a dynamic new

    ThinkGeek :: Dynaflex Powerball Gyroscope
    .Dynaflex Powerball Gyroscope - Awesome blue LED glow - the world's most powerful hand gyroscope here is a new toy for you - the Powerball in glowing Blue

    Powerball Gyro, Gyroscope, Neon Pro, Powerballs
    The Powerball Gyro builds strength in wrists, arms, shoulders and fingers with only 5 minutes use per day making remarkable increases in strength.