The Dual Purpose Spring Tensioner Chest Expander is a multifunctional device designed for arm strength training. It is used for pulling, grasping, and expanding to strengthen body muscles.
Product type: Chest Expander
Compatibility: Arm Strength Training
Material: Plastic
Adjustable tension with five springs
Size: 30x12x6cm
Weight: about 1kg
Instructions for use include various arm movements to engage muscles
