Lie on your back, arms straight, chest position. Palm opposite, use a light dumbbell.

2、

Bend your elbow, lower your arm and bring it close to your ear. Elbows are at 90 degrees.

3、

Tighten your arm muscles and then straighten your arm.

4、

Try not to move your elbow, just your forearm.

Apply it directly when you are tired at night.

Fujiaoya

Massage your arm, the effect will be more obvious, dear ~ Come on ~