Cervical Neck Traction Device for Instant Neck Pain Relief This cervical neck traction device is designed to support the neck, elevate jawbone and relieve tension in muscles Features: Helps to support the neck in its optimal alignment. Designed to relieve assist with back, spine and shoulder tension Our 3 layer Cervical Collar is simple and fully adjustable so you can have the right traction on your neck. Portable, lightweight and so easy to use. Does not require assembly. Great for traveling in a suitcase, purse, or backpack and set it up anytime anywhere you may find yourself needing some relief Specifications: Material: PVC+Flocking Product Size: Inside diameter: 14cmx9cm Outside diameter: 26cmx22cm Package Content: 1 x Cervical Neck Traction Device Note 1. Tighten the nut before inflating, pay special attention to pressing the rubber gasket against the vent hole, and do not turn the gasket upside down. After charging, move the control valve on the long tube slightly upward to prevent slow deflation. 2. When deflated, push the control blade back and loosen the air-filled handball nut. 3. When not in use for a long time, do not release the gas in the inner tank, and put it in a cool place to better maintain the latex inner tank. 4. After the traction, you should get up and rest after working at your desk for half an hour, and the pillow should be suitable when you sleep.