I used two needles to improve the range of motion in the arm and at the shoulder. These acupuncture points are on the large intestine meridian and lung meridian. They are called the Jing-well points: LI1 and LU1. Jing-well points are located at the most distal portion of a meridian, usually on the fingers or toes. Watch how these points change/improve the energy flow in the arm immediately.