Item #21 in Sports Medicine

Dynaflex PowerBall Blue Lights Gyro

Made by Dynaflex

Sales Rank on Amazon.com: 2819

Lowest Price: $42.95

Average Review: 4.5 stars

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See more items in: Sports & Outdoors: Sports Medicine

Amazon.com Reviews

Average Rating: 4.5 out of 5 Stars

The following review received 6 helpful votes out of 6 total votes:
Review Date: 2006-10-28
"Nice work"

So I got it today. All the people who said they couldn't get it to start, or that they have a lot of difficulty have some problems of some sort. I think the main problem is that they don't experiment, and like try to do the same thing over and over again, which obviously will not work. So I played around with it for about 5 min. After that time I was able to start it using the string and get it going to very good speeds, got some good time on it at that time. Tonight I played around with it for another 10 min so that I wouldn't have to take a string around with me. Now after about 10 more minutes time I can start it up at a success rate of about 80% by hand, no string, no special surface, just the ball in one hand and the other hand. Works well, can't say anything about long term effects, but I do know another pianist who uses one (we're really prone to hand and wrist injuries) and a martial arts guy who have both had good experiences with it. 5 stars

The following review received 5 helpful votes out of 5 total votes:
Review Date: 2008-01-05
"Poor quality and lack of customer service"

I bought one after seeing a friends. Mine was very hard to spin up. Had to use a string pull to get it started. Then it started getting harder to keep going. Contacted dynaflex about replacement, service, advice etc. All I got was you must have abused, dropped etc. Very poor communication style with all caps and misspelled words on top of accusations I was responsible for the loss in performance.

I enjoyed using it the 30 - to 40 times I could keep it going.

A friends powerball pro with no lights is much easier to spin up and has been working for hundreds of spins. Maybe I got a lemon but the customer service experience was bad.
2 stars

The following review received 4 helpful votes out of 4 total votes:
Review Date: 2006-05-09
"A great little gadget"

I bought this gadget for my sister and her family for Christmas last year. And it turned out to be a popular gift :-) When we first opened the package we did not see the string that is included to start the gyro ball. But we were able to start it just by sliding it on the table. As another review pointed out: it is not always easy to get it started. Some find it to be quite a challenge and it is fun to see how it comes natural for some and how it seems to be impossible for others. But this little gadget turned out to be hours of entertainment for our family :-) 5 stars

The following review received 4 helpful votes out of 4 total votes:
Review Date: 2007-07-24
"this will pump you up"

I had something similar to this a long time ago, minus the lights. I can't believe how powerful this little ball is. the resistance is amazing and it really gets exciting when you spin it up and try to keep holding on. The lights get brighter and brighter as it gets faster and faster.

I watched the cd that came with the powerball. It's got some muscle guy showing you how to start the powerball a few different ways. He goes on to show you how to exercise with it. I didn't find that to be adequate for bicep toning. The powerball will really work your forearms though! It's perfect for strengthening finger grip also.
I need the string to start it. Be careful when ripping the string out, a few times I pulled the string out crooked and had to disassemble the ball to get it out.
Don't attempt to start the ball by rubbing in on carpet, it will gather a bunch on dust in the gryo's track and you will have a very tough time gaining any speed, I needed to clean it out after that mistake.
I have only been able to start it without the string 1 time.
I think the included string will probably last only a few hundred pulls, you might think about ordering an extra one if you can't start the ball without it.

It's really not that loud if you keep it under 10k rpm. You could probably use this in a cubical without disturbing anyone. I believe the lights gather power from a magnet pickup and require no batteries.

I highly suggest that you attach some type of wrist strap to the small cutout in the ball. I used a wrist strap from my wiimote and it has saved me a few times from dropping the ball. It would have been greatly damaged if I wouldn't have had that wrist strap on.
I'm probably going to get the power meter to go with it, because it allows you to set goals for yourself. 5 stars

The following review received 3 helpful votes out of 7 total votes:
Review Date: 2007-02-14
"A great toy for a while"

This really is a neat gizmo. It's a spinny, lighty, gryo-thing. It really can't be put in to words. A ton of fun for a while, but I found that it kind of lost its novelty after a while. Still - very cool. 4 stars