- steel
- Made in the USA or Imported
- Detachable spring exerciser: can withstand a strong traction force and adapt to various strength training.
- Chest expander resistance bands: ergonomic anti-slip handles provide a comfortable grip.
- Dual-purpose expander: detachable spring steel for force adjustment, easy find the proper strength you want.
- Muscle: specially strengthen your chest, arms and shoulders. overhead pull down helps broaden upper back.
- Fitness resistance bands: reduces stress on wrists and forearms, compared to most other chest exercisers.
