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StimEUline

Self-Starting Gyro Ball Wrist Trainer – Forearm, Grip & Finger Strength Exerciser

Self-Starting Gyro Ball Wrist Trainer – Forearm, Grip & Finger Strength Exerciser

Regular price €13,95 EUR
Regular price €15,95 EUR Sale price €13,95 EUR
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Unleash serious power in your wrists, hands, and forearms — no batteries or cables required.
This self-starting gyro ball uses centrifugal force to deliver dynamic resistance training that builds grip strength, coordination, and endurance in just 60 seconds a day.


✔ Auto-Start Design
Just twist and release to activate — no cords or winding necessary. Perfect for quick use at home, in the office, or on the go.

✔ Intense Resistance, Compact Size
With rotation speeds over 12,000 RPM, this small-but-mighty trainer generates up to 61kg (135 lbs) of resistance — all from your wrist. It's 10% smaller than standard models for easy control and portability.

✔ Train Smarter, Recover Stronger
Ideal for both strength training and rehabilitation. Go slow for gentle recovery or fast for an intense pump in your forearms, wrists, and fingers.

✔ For Athletes, Musicians & More
Whether you climb, cycle, play an instrument, or just want a stronger grip, this tool helps improve speed, control, and endurance where it counts.


🔍 Specs

  • Type: Self-starting wrist gyro ball
  • Resistance: Up to 61kg (135 lbs), based on speed
  • Max RPM: Over 12,000
  • Use for: Strength, mobility, rehab, grip endurance
  • Size: Compact design (10% smaller than standard models)
  • Material: Durable ABS & stainless steel core
  • Target Areas: Wrists, forearms, fingers, hands

🎯 Perfect for climbers, gamers, musicians, athletes, and anyone working on grip & control
🧠 A great tool for improving muscle tone, reducing fatigue, or rehabbing hand/wrist discomfort

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Customer Reviews

Based on 489 reviews
69%
(338)
10%
(51)
6%
(28)
3%
(13)
12%
(59)
N
Nicolas Haag

Great giroscopic ball, when you adapt to it you do a good exercise on the whole arm.

L
Larry Bartell

Was delivered but never received, probably mail misplace it

W
Winston Kovacek

As described works good fast delivery

G
Giuseppina Miller

It's spectacular as I recommend it

S
Stacey Wisozk

Llegó a time and function correctly.