1. Support: Sedentary lifestyle, crossed legs, improper physical movements, or body fatigue can lead to spinal posture imbalance and pain. The back stretcher is specially designed to restore the natural curvature of the back and relieve back pressure.2. Effectively Relieve Pain and Improve Posture: The back massage stretcher has 88 plastic needles that relieve back pressure by stimulating the back. And let the spine return to its natural lines, helping to stabilize the spine and improve the flexibility of the back and shoulder muscles.3. Adjustable Design (4 Levels): This spinal stretcher is designed to be height-adjustable, with a total of 4 levels, which can be used by most people. You can choose the most suitable and comfortable height to stretch your back and relieve stress. The higher the height you set, the stronger stretching force you can get.4. Durable Material: The lumbar support is made of sturdy ABS and environmentally friendly NBR materials. The back stretcher can support up to 330 pounds, and the foam strip in the middle of the device can provide cushioning, allowing you to use it more comfortably.5. Portable - Great for use at home, in the gym, in the car, or on an office chair.