Online: www.REI.com
URL for this product:

From the U.S. and Canada — Call 1-800-426-4840
Mon. through Sun., 4 a.m. through 11 p.m. PT.
International — Call 1-253-891-2500
Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.

BLUE

Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station

$47.95

(6)

Item # 803137

100% Satisfaction Guaranteed
Gear and Advice You Can Trust

Orders of $50 or more ship for free.
Learn more

To view videos or use the zoom feature on REI's websites, please download the latest version of Adobe Flash Player.

NOW PLAYING

The Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station spins at up to 15,000 RPM with up to 40 lbs. of torque to help improve your coordination while building the strength of your grip.

LED lights flash faster and faster as your gyro gains speed for a fun light show while you work out
Included PowerDock docking station activates the gyro to get it up to operating speed in just a few seconds
Easy-grip outer sphere allows increased control and prolonged usage
Variable resistance is achieved by increasing or decreasing the speed; therapeutic for hands, wrists, arms, biceps and triceps
Aids in the prevention of repetitive stress injuries such as carpal tunnel syndrome
Get the edge in rock climbing and any other sport that requires control and a strong grip

Imported.

Item 803137

$9.59

with coupon code ANNV13
May 17-27 Details

Not a member? Add a Membership

View all Dynaflex products

REI Membership

REI Membership $20.00

Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews

Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station

4.2

(based on 6 reviews)

83%

of respondents would recommend this to a friend.

Pros

Cons

Best Uses

Bouldering (4)
Indoor (3)
Long climbs (3)
Outdoors (3)
Sprint climbs (3)

- Reviewer Profile:
- Avid climber (3)
- Was this a gift?:
- No (4)

Reviewed by 6 customers

Sort by

Displaying reviews 1-6

Apr

2013

5.0

What a great device!!!

By Mikey the Skydiver

from Denver, CO

About Me Getting Started

See all my reviews

Pros

Best Forearm Workout
Easy to use
Highly Adjustable

Cons

Best Uses

Bouldering
Exercising
Indoor
Long Climbs
Outdoor
Sprint Climbs

Comments about Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station:

The product is extremely versatile and can achieve very specific workout needs in your hands, wrists, forearms, biceps, triceps, and to some degree your shoulders and chest.

Comment on this review

Feb

2013

4.0

Rehab and training

By Don B

from Poulsbo, WA

About Me Avid Climber

See all my reviews

Pros

Cons

Best Uses

Bouldering
Indoor
Injury Rehab
Long Climbs
Outdoor
Sprint Climbs

Comments about Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station:

My orthapedic surgeon recommended this as rehab after tendon surgery AND for strength training. I had my doubts due to its gimmickie appearance. This model was the only one the store had in stock, with lights inside and a starting dock station. Anyway I was shocked at how much you do feel it working your finger strength and forearms! I am climbing a 10b (from 10d) again after 2 months of rehab. I like how you can control the intensity of the training vs the "squeezing" devices/balls which you have to buy multiple of depending on range you want to use.

Comment on this review

Jul

2012

(1 of 3 customers found this review helpful)

1.0

Did Not Work

By OldGuyAches

from St Paul MN

See all my reviews

Pros

Good Theory

Cons

Did not spin fast enough

Best Uses

Comments about Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station:

I bought this for wrist therapy exercises, related to tendonitis (similar to carpal tunnel).

With two new batteries, the base would spin fine with no load. But with the "ball" on, it would only reach moderate speed. This was not enough
rpm for the unit to generate good gyro forces. I could never get it to give me more than a couple foot-pounds torque. Plus the rotation slowed very quickly. I really like the theory, and other people say it is working for them. Perhaps I got a defective power unit.

Comment on this review

Dec

2011

(1 of 1 customers found this review helpful)

5.0

Wrist issues, no more!

By myclimbingisalligot

from Sac, CA

About Me Avid Climber

See all my reviews

Pros

Comfortable
Highly Adjustable
Lightweight
Rugged

Cons

Best Uses

Bouldering
Indoor
Long Climbs
Outdoor
Sprint Climbs

Comments about Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station:

My primary concern with this product was how much torque it produces because I can easily just grab a dumbbell and do the same movement. But after using it two days, the counterweight does everything a dumbbell can't and it gets pretty difficult to hold onto if you spin it really fast. My wrist felt a lot better after using this for about 3-4 minutes a day for 2 days. Highly recommended!

Comment on this review

Nov

2011

(1 of 1 customers found this review helpful)

5.0

Great for increased grip

By Grappling Nut

from St. Louis, MO

About Me Casual/ Recreational

See all my reviews

Pros

Easy to use
Great workout

Cons

Best Uses

Comments about Dynaflex Blue Gyro PowerBall Hand Exerciser + Docking Station:

I don't use this for climbing, I use it to improve my grip for BJJ. It is a great workout for your forearm, wrist, and hand muscles. It is easy to use, easy to take with you, and you can do it while you are resting at night or traveling. You will notice a great burn and fatigue within a few minutes of using. Great product,