Cervical Neck Traction for Headache Head Back Shoulder Neck Pain by TJSpecial Features: Light weight and easy to use. Comfortable and non-threatening. Adjustable universal size for most men and women. Application: People who spend long time on the computers, cars. Description: Color: The color is as shown in pictures. How to use it? 1. Tight the air valve first. 2. Push the blocker to the large end of blocker holder. 3. Simply place the air Neck Traction device around your neck, use the inflation pump to slowly raise the pressure to a comfortable stretch, then push the blocker to the small end of blocker holder. 4. At the beginning use it with low pressure for 5 ~ 10 minutes, and within a few days feel a positive body response, increase to up to 20 to 25 minutes. 5. When finished using, push the blocker to the large end of the blocker holder and loose the air valve, should be released slowly.