Zontoo Grip Progress Kit
Zontoo Grip Progress Kit
Free US shipping · Estimated delivery: 2–4 weeks · Tracked
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Damaged, faulty or wrong size: one photo within 30 days, no return shipping. Changed your mind: 30 days, unused, return at your cost. Full policy
Why order from Zontoo
- 1-year breakage coverBreaks in normal use within a year: free replacement.
- 30-day price promisePrice drops within 30 days of your order: we refund the difference.
- No customs feesNothing to pay at delivery. Duties are on us.
- A person answerssupport@zontoo.com · 24–48 h, Mon–Fri.
Test. Train. Retest. Take a number on day one, train your grip for a month, then take the number again on the same unit.
Bought separately: $142 · Kit: $119 · You save $23
What's in the kit
- Grip Strength Tester ($49) — palm-sized digital tester, holds your peak reading
- LED Gyro Ball ($49) — self-starting rotor, resistance builds as it spins
- Spring Wrist Trainer ($44) — forearm through a spring frame, the load comes from the wrist angle
How it's used
- Day 1 — test. Arm at your side, one 3-second squeeze on the tester. Write down both hands.
- Days 2–29 — train. Gyro ball and wrist trainer at the end of a session, 2–3 times a week. Until the forearm gives out, then switch hands.
- Day 30 — retest. Same hand, same time of day, same unit. Compare against your own day-one number.
Results depend on your training. The tester shows your own number; compare it only against yourself on the same unit.
Free US shipping · Tracked · Estimated delivery: 2–4 weeks · 30-day photo claims (damaged, faulty or wrong size), no return shipping · 1-year replacement
Items may arrive in separate packages.
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