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Zontoo Finger Trainer Ball
$15.00
Free US shipping · Estimated delivery: 2–3 weeks · Tracked
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The other half of grip. Everything you do in the gym closes your hand. This opens it. Five silicone finger caps on a resistance ball — extend, spread, squeeze, repeat.
What it is
A silicone ball with finger sleeves for extension and abduction work. The muscles on the back of the forearm get almost nothing from lifting; this is where they get it.
Spec
- Food-grade silicone, wipes clean
- Fits most hand sizes (caps stretch)
- Weighs less than a phone
How it's used
- Fingers in the caps. Open the hand wide against the caps — 15 reps.
- Squeeze the ball — 15 reps.
- Do it while the kettle boils. That's the whole routine.
Not a medical device. If you are injured, talk to a professional before adding any tool to your routine.
Free US shipping · Tracked · Estimated delivery: 2–3 weeks · 30-day photo refund, no return shipping · 1-year replacement