- // Features
- It is designed for gripping to forearm, finger, and shoulder, also flexibility.
- Strength the hand muscular endurance.
- Simple to use and easy to integrate into almost any training condition.
- Produced by Taiwan manufacturer with good quality.
- // Specification
Spring: 4.5mm (Red)
Spring: 5mm (Green)
Spring: 5.5mm (Blue)
Spring: 6mm (Black)
4 different tensions available