30-60 kg adjustable arm strength device, you can adjust the training strength according to your needs, arm strength, chest muscles, wrist strength, back muscles, and intensive training. Safe fitness, professional rebound. Full resolve potential safety hazards to ensures physical healthy, no damage and safe bounce. Rotate the air bar to adjust the internal spring tension, built-in spring structure, adjust the kilogram level. Add non-slip bumps, non-slip and wear-resistant handles, tightly fit the steel and not easy to slide. High-quality processing technology, higher safety, fixed movement track, no rebound.
Strength Training Device Adjustable Forearm Chest Expander Wrist Arm Power Trainer - ZGTU1PDT