Functions: for long hours of low head work crowd, neck and shoulder fatigue and pain, dizziness, hand numbness, etc., has a good prevention and treatment. 1. Lift the tripod to ask the sky Stand with feet apart and shoulder width apart, cross your fingers and lift your hands from the abdomen, turn your palms upward and straighten them, and look up at the sky. Then the hands separate, from both sides of the fall back to the side of the body. Repeat this action 5 times. 2. Rhinoceros looking at the moon stand feet apart and shoulder width apart, hands on the waist. Look up at the sky, then slowly turn left and right, looking up. Repeat 5 times. 3. Backward Leaning Neck Clamp Standing style is the same as before. Put your hands behind your neck with your index, middle and ring fingers, tilt your head back and press the back of your neck with your three fingers in front of you at the same time. Repeat 5 times. Do this once a day in the morning and once in the afternoon.