NEW UPGRADE BACK EXTENSION DEVICE. No more limited heightsyou can simply squeeze the handle of our spine extender or press the button under the handle to quickly deflate and set a comfortable arch angle that suits your needs and fits your back and muscles well. It can effectively relieve back pain and help you relax. STABLE MATERIAL. The back stretcher is made of environmentally friendly ABS and PP material. The airbag is made of Oxford fabric and TPU, providing a safe and durable use experience while offering stable support for your back. It can withstand a weight of up to 200 kg (440 lbs) and will not easily deform or break with prolonged use. HOW IT WORKS. The lumbar spine stretching board is equipped with 8 magnets and 104 plastic points that apply deep pressure to specific areas of the back, helping to stimulate acupressure points. If you prefer a softer surface, a 5 mm thick high-quality pad is included for added comfort. DESIGNED TO SUPPORT BACK HEALTH. Poor posture in daily life can negatively affect body alignment and may lead to muscle tension, lower back strain, or discomfort. Our back stretcher provides physical stretching and support. By gently stretching the back, it helps restore the natural curvature of the spine, supports spinal stability, and improves flexibility. VERSATILE USE. Thanks to its ergonomic design, this back stretcher is suitable for most users. It can be used while lying down or sitting to help relieve fatigue and discomfort. Easy to use and portable, it makes a thoughtful gift for loved ones. If you have any questions, feel free to we are here to help.