Using the Powerball is a handheld gyroscope device that is spreading across the world into the hands of the young and old alike! It’s a baseball sized handheld device that can be used anywhere and whenever you have free time. This has been proven to directly translate into a major boost in distance and endurance. The speed of the device ranges from 2000 rpm to 16000 rpm and at this highest speed it is calculated that 40lbs of resistance is being generated. It can used in a fitness way to build muscle or for exercise and in a sports manner to build strength for their chosen sport, the Powerball gyroscope can be used in a fitness, sports, rehabilitation or fun manner making it fun, pleasurable and very addictive. The Powerball can be used by anyone with hands big enough to grip it. Therefore the device is useful for increasing finger, hand, wrist and arm strength as well as increasing blood flow and ligament strength. As you gently build up the speed, measured in revolutions per minute (rpm) the greater the torsion and dynamic forces acting upon your wrist, lower and upper arm muscles, depending on the arm orientation and direction

    Amazon.com: Digital Speed Meter for Dynaflex Powerball & Pro Plus: Sports & Outdoors
    Amazon.com: Digital Speed Meter for Dynaflex Powerball & Pro Plus: Sports & Outdoors The Digital Speed Meter works with the Dyna-Flex PowerBall & Pro

    Dyna-flex Digital Speed Meter for Gyro Trainers - SHOP.COM
    dyna-flexdigital speed meter works with the dyna-flex powerball to display .Shop for Dyna-flex Digital Speed Meter for Gyro Trainers at Shop.com