40KG Power Twister Bar, Upper Body Strength Training Bar, Heavy Duty Arm Builder for Strengthening Chest Workout, Shoulders, Biceps, Arms, Forearm Strengthener Builder Spring Exercise Bar

OverviewHow to use:
1. Bend your arms and bend the spring behind your neck.
2. Bend the spring upward with your arms forward, then relax.
3. Bend the spring with your arms close to your chest, then straighten it, and slowly relax.
4. Stand, spread your feet apart, bend your right elbow, bend the spring with your left hand, then bend your left elbow, and bend the spring with your right hand.
5. Hold the spring with your arms behind you, then straighten it downward and gradually bend it.

Precautions:
1. Before use, please check whether the connection parts of the arm trainer are firm and not loose.
2. Please choose an arm trainer that suits your physical fitness level to avoid muscle strain.
3. When using, put the safety belt on the handle of the arm trainer on your wrist.
4. When using, you should choose a relatively wide and loose venue to exercise to avoid slipping out of your hands and injuring others.
5. It is recommended that children under 12 years old do not use the arm trainer.
6. When using, you should do it at a uniform speed.