Feature: 1. Three-speed adjustment of the arc-shaped lift, 60pcs acupressure points. How it works？ Stretching your neck through gently cervical traction oxygenates your body, relaxes neck muscles to increase blood flow and circulation, and brightens your mood! Effective for physical therapy, chronic neck pain, tension headaches, poor sleep, stress, shoulder pain and more. Within 60 seconds your neck tightness and pressure start to vanish. massage the acupressure and muscle, relieve neck, shoulder and back muscle pain, to protect the cervical vertebra and release pressure. How to use: Place the lumbar support on flat. Adjust the angle you need Lying slowly on the neck support Align the spine with the central foam pad After stretching. Sit up slowly. Hold for 30 seconds before standing up Parameter ： Materials：ABS plastic, NBR foam,Environmentally friendly and odorless Maximum load: 180kg/400 IBS Colors：Blue、Green、purple、 Size: 10in*31.8in*6.6in Package Content: 1 X Acupuncture Massager Stretcher Little helper tips： recommended to put it in the first gear when using it for the first time, keep it for one day, will easily adjust the gear position in the future, Beginners are recommended to Using the back decompression devices 1-2 times a day for 5-10 mins a session. The correct way to leave the massager,：sideways， support with your arms slowly, please do not suddenly lift up