1. Helps relieve hand muscle pain and strengthen finger dexterity
2. 5-60kg adjustable, suitable for the whole family
3. 2.5mm diameter built-in pressure spring, repeated use of the elasticity does not deteriorate
4. Ergonomic handle, comfortable to hold, using one-piece technology, solid and not fall off
5. A variety of exercise positions, exercise different muscle groups
6. Material: nylon, metal, ABS
7. Power supply for counting models: button battery included
8. Strength: 5-60kg
9. Size: about 15 x 11cm
Specification:
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