Relieve pain effectively and improve posture: The back massage stretcher features 88 plastic nodes that help relieve back pressure by stimulating the back muscles. It supports the spine in returning to its natural alignment, helping to stabilize the spinal column and improve flexibility in the back and shoulder muscles. Supportive design: Sedentary lifestyle, poor posture, incorrect physical movement, or body fatigue may lead to spinal misalignment and discomfort. This back stretcher is designed to help restore the natural curvature of the spine and reduce back pressure. Adjustable design: This spinal stretcher has an adjustable height with three levels, suitable for most users. You can select the most comfortable height to stretch your back and relieve tension. Higher settings provide a stronger stretching sensation. Size: 38.5 x 25.5 x 9.5 cm. Durable construction: The lumbar support device is made from sturdy ABS and high-density NBR foam materials. It supports up to 330 pounds, and the foam padding in the center provides comfort during use. Portable and convenient: Ideal for use at home, in the office, at the gym, or while traveling.