Differences from traditional cervical traction 1: The traditional traction therapy is performed by traction beds or slings in the hospital. The cost of treatment is high and the treatment is greatly restricted. The new generation of three-power neck retractor with airbag support can be used at home to watch TV, do housework, and work. The second difference from the traditional cervical traction: the principle of action: through the upward 20-degree arc thrust, the intervertebral space is opened, the intervertebral disc that protrudes and compresses the nerve is restored to its original position, and the compression is relieved. It is not the traditional reverse traction or straight traction. This is the reverse direction of the curvature of the cervical spine. You may feel a little pain, which is normal. Targeted Heat Therapy: When you choose to use a USB heating pad, the neck heating pack can provide comfortable heat therapy, help blood circulation, smooth nerves and neck soreness, great for neck soreness, sprains and strains, muscles Pain, Postoperative Rehabilitation and Neck Injury Support. Can be used in the office, at home and while traveling. Especially suitable for students, teachers, office workers and the elderly who are prone to neck pain. Applicable people and Reasonable effect after use: Measure your neck before purchasing. Height Range: 3.2-4.7 inches, Neck Circumference: 13.7 - 17.5 inches. Designed for regular neck sizes, not for thick necks. Using it for 15-30 minutes every day for a period of time can relieve nerve compression and cervical spine pressure, dizziness, weakness of limbs, hand numbness, nausea and other symptoms.