Note: Please try to adapt for about 5 seconds before use. People with waist disorders and treatments cannot use it. When the irritation is strong, you can use a pillow to cushion it, or bend your knees to adjust the strength specification: Item Type: Cervical Traction Device_x000D_Purpose: Suitable for people who maintain a fixed posture for a long time at work and have poor shoulders, waist, and neck. It can eliminate stress and can be used in offices, homes, and cars._x000D_Material: ABS Features: 1Wide Range Of Application: Suitable for people who maintain a fixed posture for a long time at work and have poor shoulders, waist, and neck, which can eliminate stress. 2Imitation Finger Pressure Massage: 2 points raised on the front, 4 points raised on the front to press neck acupoints, similar to finger massage in traditional Chinese medicine to stimulate neck acupoints. 3Healthy Cervical Spine Curve: Through traction, the arched, straightened cervical spine can be restored to a healthy cervical spine curve. 4Ergonomic Design: Pillow conforms to height of curvature of human cervical spine, and uses the human head and body to reform natural curvature of traction. 5Portable And Easy use: Stretcher is small and easy to carry, no power supply, physical traction massage, saving your time and energy. PackageList: 1 x Cervical Traction Device