Li-Ning Arm Strength Bar, 40 Kg Grip Bar, Men's Arm And Chest Muscle Fitness Equipment, Chest Expander, Safe Double Spring

2. Bend both arms forward and upward with the spring, then relax.

3. Bring both arms close to the chest, bend the spring, then straighten and slowly relax.

4. Stand with feet apart, bend the right elbow, bend the spring with the left hand, then bend the left elbow with the right hand.

5. Extend both arms behind the body, grip the spring tightly, then gradually bend down.

1. Check all connection points of the arm strengthener for firmness before use.

2. Choose an arm strengthener suitable for your physical fitness level to avoid muscle strain.

3. Secure the safety strap on the handle around the wrist during use.

4. Exercise in a relatively wide and open space to prevent accidental slipping.

5. It is recommended that children under 12 years old do not use the arm strengthener.

1. High-quality steel spring for durability

2. Anti-slip handle for comfortable grip

3. Woven rope for high strength and durability