Dyna-Flex- this thing is awesome!

I love this thing so much that I want it to have my babies. 

The Dyna-Flex made by Dyna-Flex International, is a small gyro used to strengthen your hands and arms.  You simply spin the wheel inside the plastic casing and rotate the internal gyro.  The force generated through angular momentum is held steady by the muscles of your arm, forearm, wrist, or fingers depending on how you hold and maneuver the device.

If you’re worried that the Dyna-Flex is a gimmick, don’t be.  It’s not.  You’ll be hard pressed to find a better exercise for your arms.  If you rock climb, this is a must have.  The Dyna-Flex is also beneficial for rehabilitation.  Take a look at the video for starting instructions, tips, and assorted exercises. 

Various models of the Dyna-Flex are available. 

The Powerball Gyro Blue (shown to the right) generates 40lbs of torque with speeds up to 18,000 RPM, while the Powerball Gyro Amber (shown above) generates 35lbs of torque with speeds up to 13,000 RPMs; although I’ve maxed out at 12,171 RPMs. 

There’s also a couple of Dyna-flex Pro Models that generate lesser amounts of force.  When you get the Dyna-flex, you might also want the convenient docking station that starts the gyro spinning with the push of a button.  I would also recommend the speed meter which measures the speed, rpm, highest rpm, and revolutions of the gyro.  Have a fun workout!