- spring steel
- Made in the USA or Imported
- Shoulder Muscle Exerciser: and also lightweight for easy transportation. Safe for strength training at home or outdoor for women and .
- Muscle Shoulder Trainer:Chest expander have 5 spring tube, easy to detach or reattaching the tubes for different strength strength.
- Chest Arm Expander:Professional cards groove design to ensure the spring pipe does not fall off.
- Chest Stretcher:Safe to use. A variety of different exercise variants are possible with this chest expander.
- Chest Training Exerciser:5 spring resistance bands easily added or removed with a snap for adjusting the strength level.