DynaFlex Docking Station with Blue Powerball 12075 Strengthening System

Editorial Review
Jump start your gyro exerciser and get it up to operating speed in seconds with the DynaFlex PowerDock docking station. Bundled with DynaFlex's Powerball (blue) hand exerciser, the package offers everything you need to increase your range of motion and condition your arm, elbow, and shoulder muscles. The ultimate in engineering design, the Powerball offers the same user-friendly features as the DynaFlex Pro Plus, but incorporates an onboard generator and balanced rotor. By activating the gyro, a dynamism (motion) is created, which will activate blue LED lights that are located in the interior of the gyro. The faster the unit runs, the brighter the lights will radiate until the whole hand is engulfed in a bright glow. More importantly, the Powerball generates 40 pounds of torque and speeds of up to 18,000 rpm, making it an ideal tool for physical therapists, trainers, and athletes who want to improve muscle condition and/or rehabilitate nagging upper body injuries.

As a bonus, the removable end cap lets you attach an optional speed meter, making it easy to monitor your exercise time, rpm speeds, and other functions. The PowerDock docking station, meanwhile, both activates your Powerball gyro and serves as a fantastic and modern-looking base to rest your gyro while not in use. Just hold the button for a few seconds and hold on tight. The docking station requires two AA batteries (not included).

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Customer Reviews

Dyna-Flex

2007-11-17
Ball is Ok more of a novelty that a real exercise. The powerdock base is useless to start the ball up. Don't lose the string to start the ball moving or the ball is just going to be a paperweight.

Useless

2007-07-23
I got this product for my mother since she had Carpal Tunnel surgery. When we saw the video recorded in the mini CD, just decided to return it. The excercises can be done with any ball the sime size.

Useless

2007-04-10
This is a toy and it hardly works to boot. I found this product while searching Amazon for wrist supports due to wrist pain I was having. This was one of the featured recommended products. I recommend not purchasing this if you want it to strengthen wrist or for physical therapy. It is a toy and nothing more. The base (which adds $25 to the price!) does not set the inner ball spinning 8 out of 10 times. 80% of the time it swivels inside the casing and does not build up the torque you need to make the thing useful. You can get better torque just using the string that it comes with. Save $25 and don't get the base! And only purchase it if you want a toy, not a physical therapy devise.

I love this thing.

2007-03-11
I love this thing, but mine came with a totally scratched mini CD. Neither the manufacturer or Sharper Image wrote me back.

It doesn't work

2008-05-25
When I bought I thought I could avoid start power ball manually. Forget this, because it's week and simply doesn't work as purposed.

Great for arm strength and conditioning.

2008-05-23
This item is perfect for me for two reasons:
1) I type very fast and use the computer very often.
2) I'm a tennis player.

I purchased this in September of '07 and have been using it ever since, almost everyday. I bought this with the intent of helping me achieve better arm strength and grip since I play tennis. I have not had tennis elbow or any pain or soreness in my hand,wrist,forearm,etc.

If you do not use proper technique with the string, the tip of the string can easily break off and then you'd have to use the dock or the advanced techniques. The dock is constructed very cheaply IMO. Looks like something someone made in the garage. It is effective though, and the only complaint I have about the dock is that I have to keep buying batteries (so I'd recommend rechargeable batteries, it uses two-AAA).

Don't read some of these reviews on here that say the dock takes forever to start up the ball. It only takes maybe 5-7 seconds to get the ball started up using the dock, which isn't that bad considering it already has a ton of momentum for you to work with.

Also, this isn't just a "toy" like some of the reviewers here have stated. If used properly with the right technique and repetition, you'll be using this thing everyday. I'd definitely recommend it for those who need physical therapy, those who play tennis a lot, and those who use the computer as often as I do.

All in all, I don't have any real complaints about it. I bought my Gyroball from Sharper Image and purchased an extended warranty on it. Don't know if Amazon offers one on their website though. The only reason I gave it 5* despite the criticisms about the dock and string are for the performance and usage of the gyroball itself.

Forget the Dock, just buy the Powerball

2008-02-26
I like my blue Powerball but the Dock is worthless. It is much, much easier to get the ball started with the string. I probably should have gotten the Amber Powerball, since the blue one seems a bit limited. My hand strength is above average but not great. I use Gripmaster Med and Heavy Tension daily.

PowerBall is excellent, but skip the docking station

2007-12-23
The PowerBall provides an excellent workout for the hands and forearms. The accompanying documentation (CD-ROM video) describes additional benefits such as it being a good workout for the biceps, but these claims are laughable overstatements. The PowerBall is well made and I expect it will last a long time. However, the Docking Station is not worth the cost; it is cheaply made and does not work very well. I recommend just getting the PowerBall by itself and using the string to get it started.

Neat little item, I would skip the power dock though.

2007-12-21
The powerball itself is pretty neat to play with and only took me about five mintues to get going. I can see though how one could be come frustrated if they don't pick up on the motion to keep it going right away. The string worked just as well as the docking station does and if I was ordering again (which I may do as it does make for an interesting gift) I would probaly go for just the ball as I don't think the docking station is that great a benefit and makes the package cost as much as two balls. I took off the one star for what the dock costs vs. what I think it was worth. If I had paid for just the ball I would probably give it five.