10-100KG Adjustable Electronic Grip Arm Muscle Training, JM005 Black, JM005 Green, JM005 Blue

1. Material: reinforced PP, encapsulated TPR, spring
2. Power supply: button battery (included)
3. Intelligent counting, electronic liquid crystal display
4. The quantity can be reset and reused
5. 4mm high-strength thickened carbon steel spring, durable and not easy to break
6. 10-100KG strength can be adjusted freely, rotate the button to add or subtract
7. Strengthen hand strength and finger flexibility
8. TPR ergonomic handle, non-slip fit fingers
9. Size: 14.5x16cm
10. Weight: about 200 grams