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Dynaflex Powerball Gyro Exerciser
Normal Price:$21.50
Our Price:$18.95
Availability:Usually ships in 2-3 business days
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Manufacturer: Healiohealth
Binding: Health and Beauty
Publisher: Healiohealth
Label: Healiohealth
Features for Dynaflex Powerball Gyro Exerciser:
- Dyna flex is iso-tonic and iso-kinetic, rather than iso-metric, it is safe and effective, in the medical therapeutic setting, as well as for sports training and rehabilitation.
- Dynaflex gyro exerciser builds strength while improving coordination
- New easy grip outer sphere for better control and prolonged usage
- This dyna ball gets the edge in Tennis, Bowling, Golf or any sport that requires a strong grip and / or control.
- Dynaflex gyro Perfect for sports warm-ups! Instructional Disk Included
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Customer Reviews
Actually works. 
2008-06-15
The seller's website is full of gimmicky health junk. Ignore that. I have this, and it's good honest exercise.
In short; it's a simple concept put to good use cleverly. Don't drop it, don't touch the inside, and don't use it where noise might annoy others. It sounds, as the seller describes it, like a jet engine. The noise is moderate, though, and not likely to dissuade you from cranking it up to hyperspeed and competing with your friends.
It's addictive, fun, and good exercise. Buy one.
hang on 
2008-01-25
This is a great product the reason I didn't give it 5 stars is because, the string, I had to put a dowel on it with a hole in it to be able to pull the string good enough to get it going. Once I did this, hang on the ball is going a really gives you a work out. Great for people like myself who can not work out on weights because of a balance issue.
Julie