YouTube - Review of the Dynaflex Powerball

This product has been around for awhile but very few people know about it. Not the best video, but better than a lot on youtube.com.


You can get this gadget at REI or Amazon.com, type in Dynaflex Pro Gyro Ball Hand Exerciser.

Warning: If you have an existing orthopedic issue (tennis elbow, carpal tunnel) start slowly as this may aggravate the problem you are trying to rehab.- Review of the Dynaflex Powerball