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RT Pro Gyro Exerciser, Build Strength with Variable Resistance, Fun and Therapeutic Exerciser for Hand, Forearm, and Wrist Strengthening

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$27.99

$ 12 .99 $12.99

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About this item

  • Balanced gyroscopic rotor inside compact sphere of polycarbonate plastic provides for an easy grip and minimizes fatigue and provides good control
  • Maximum RPMs approaching 9,000 and developing 32 lbs. of gyroscopic force provides quite a workout for wrists, grip and arms
  • No motor, no batteries and it's outer ball doesn't move (just the spinning rotor within)
  • Can also help prevent repetitive strain injuries and carpal tunnel syndrome
  • Great for injury prevention, rehab, warm up, coordination, strength building, and relaxation


RT Pro Gyro Exerciser consists of a balanced gyroscopic rotor inside a compact sphere of polycarbonate plastic. Helps to build strength with variable resistance by reaching maximum RPMs approaching 9,000 and developing 32 lbs. of gyroscopic force. The easy to grip exerciser provides quite a workout for wrists, grip, and arms, while minimizing fatigue and providing good control. Great for injury prevention, rehab, warm up, coordination, strength building, and relaxation.


Matthew S.
Reviewed in the United States on February 2, 2025
I have a couple of friends who do a lot of rock climbing and turn me onto this as a way to help with grip strength. I’ve been having some problems with tendon strain from weightlifting so I figured I’d try this to help with some of that pain. It’s a neat little thing. I found that it does help just to warm up my muscles and tendons and get some of the tension and pain out. Also overtime I found that it has helped a bit with some of my overall pain and discomfort in my forearms. particularly helpful for my brachoradialis tendon pain.I think the only criticism I could really give for this is the need for the string to start it up. I’ve tried a bunch of times to start it without the string, but I just don’t seem to figure it out. The challenge is that my cats love to go after the string so I always have to be super careful where I put it when I’m actually using it.The other thing is sort of a funny sidenote is that if you’re going to use this while you’re on a conference call for work. You should probably keep your camera off. Because to the people on the other side, it looks like you might be doing something inappropriate.
Param
Reviewed in Canada on May 29, 2017
This is a great product, I used my friend's all the time and loved it. BUT, when I bought if from amazon it came broken. The inner ball was not connected properly and I could hear moving parts broken off inside. I guess it broke off when during the shipping? The CD was also cracked. I didn't think much of it because I've never got a bad product from amazon before so this was a first time. I asked for a replacement and it came in the very next day. HOWEVER, this one had the exact same issues!!! Same problem with the ball and same CD cracked. I compared with my friend's and his is still working fine (he did not get it from amazon). So I do not know why I got 2 broken products, but I am going to return them both and look for the product elsewhere. Honestly, this is my first bad experience from amazon, hopefully doesn't happen again.
christian
Reviewed in Canada on April 8, 2017
fonctionne bien
Ophelia
Reviewed in Canada on April 14, 2017
This thing is pretty hard to start up with my palm or on a table top even after watching the training video with "Sexy Ned Flanders". I always use the cord to spin the Powerball up, but be careful so that the cord doesn't get caught inside the unit. It can be tricky to get back out again.
The Smoot
Reviewed in the United States on June 27, 2016
I heard about this device from a firearms trainer who swore by it as a method of improving grip strength. I can attest to its ability to seriously work out the forearms and flexors. I did not believe it would do much more than serve as a paper weight, but I now use it multiple times per day.It is difficult to use in the beginning, as it takes a bit of rhythm to get it going.The cons-the "training video" link was dead when I tried it, but there are multiple Youtube videos the will help you out. Also, it is difficult to get it spinning without the included string, of which there is only one.Other than that, I can say it has helped my shooting and my overall workout.
Customer
Reviewed in Canada on May 3, 2016
This thing is awesome. Jus be smart and dont over do it
Miguel Alvarez
Reviewed in Mexico on May 16, 2016
Llegó a tiempo y en perfectas condiciones! Muy recomendable como aparato de ejercicio. Uno de los mejores servicios recibidos a través de Amazon.
Maximum Verbosity
Reviewed in the United States on September 15, 2011
I suffered a serious injury to the index finger on my right hand (and I am right-handed). I was looking for something to help strengthen it without being boring, repetitive and something that would actually be useful when I stumbled across the Dynaflex pro. I wasn't quite sure what it was, but I gave it a shot anyway.When it arrived, at first I was very confused as to what to do with it. I understood the concept of a gyroscope but not how it worked within this ball. The directions weren't that helpful so I searched online for a video hoping maybe someone could SHOW me how to use it. That wasn't much more helpful, but I'm a determined person and kept trying to figure it out. I couldn't understand WHAT it was supposed to be doing. I could see there was a heavy, magnet-feeling weight to it and something that rattled inside (think of a heavy cement marble inside of a slightly larger plastic ball and what it would feel like if you were trying to get it to spin around using centrifugal force). Everything I tried frustrated me because I could NOT get it started. It comes with a red string, that sort of looks like a shoe string and the directions did say if you can't get it "started" (still not sure what that meant at the time), you could insert the string in the hole located on the yellow part (see the photo), wrap it around and give it a pull - similar to those toy cars where you insert the long, plastic strip and give it a yank it get it started zipping across the floor.So, I followed the directions, pulled the string and felt a weight against my hand. I got a good grip on the ball in the palm of my hand and sort of flippled my hand palm up/palm down, working against the weight to make it spin. What happens is, the weight (inside of the yellow part) begins spinning (sort of like I described with the marble I assume) and goes faster and faster, requiring you to have a stronger and stronger grip on the ball. You can feel the muscles all the way up your arm into your shoulder beginning to work, the faster it spins, the more difficult it is to hold! I then tried transferring it to my left hand and realized it had to make it spin the other direction.In the end, it was the perfect thing to strengthen my finger (I had accidentally sliced my tendons & arteries, nearly severing my finger) to the point where I can type this review, hold a pencil and my surgeon was amazed at my quick progress. It's also a great way to work your biceps and triceps and strengthen your wrists. It's about the size of a tennis ball, maybe a bit smaller.Maybe I'll find some time to make a video review to help anyone who needs that little extra "something" to get it started. This is a great toy, portable exerciser or perfect for OT/PT and recovery from injury as well.
Debbora B. Quayle
Reviewed in the United States on June 4, 2009
I purchased the DynaFlex in order to strengthen my wrist and hand after surgery on my wrist for a ganglion cyst. I was nervous about purchasing it because some reviewers said it was hard to start. However, I found it very easy to start with the string that is provided. It only took a few tries handling the DynaFlex to find that "sweet spot" when the gyroscope takes off and starts exercising your hand. Not only has my grip improved (in a very short while) but I find it very convenient to use. (I like to use it while watching TV.) It is possible to vary the speed of the workout so that you can gently exercise your hand (especially important when it is still recovering from an injury). It is also true that this device exercises and strengthens your lower arm (you can feel it working!). I haven't used it long enough to say whether it has also strengthened my upper arm, but I imagine that it will - at least to some extent. I like the DynaFlex so much, that I ordered one for a friend who is recovering from a broken wrist. If you think I'm some young sports buff...think again. I'm 56 and happy to do anything to keep the strength in my hands. My friend reports that she likes it too and she is in her 60s.
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