Back & Lumbar Support Cushions Feature 1. Relieve muscle pain and stress-use our ergonomically designed self-massage device to relieve chronic back pain and relieve stress. 2. Lightweight and strong-made of high-quality ABS. Always use it! Perfect for home, office chair, gym, car or yoga mat. 3. The perfect gift for yourself and your lover-to reward yourself and restore the health of tired and tense muscles. Express gratitude to wives, husbands, parents, friends and teachers on special days. 4. Multifunctional self-massager, suitable for the whole body-multi-level waist support stretcher, spine, back massager, shoulder massager and back massager, used for bed, back massager, back massager, car, waist Back Pain Relief Treatment Stretcher| Chronic Lumbar Support| Herniated Disc| Sciatic Nerve| Spinal Stenosis| Posture Corrector | 5. Save your electricity bills-without power or batteries, you can still enjoy enough pressure. It is recommended to use recommendations. Beginners or those with spine pain can add a soft cloth pad or towel when using for the first time to avoid direct contact with the hard lumbar plate, which may cause injury Specification Material: ABS plastic Gear position: three gear adjustment Scope of application: cervical spine, lumbar spine, and legs are most acceptable Gear position: 3 gears Control method: mechanical Massage techniques: tapping, massage, tapping, kneading Power supply mode: not required Packaging Included 1 *panel 1 *base 1 *sponge pad 1*use manual TIP People who are unwell, who have recently undergone surgery or have back injuries, please consult a doctor before using this product Patients with malignant tumors and pregnant women should ask their doctor for permission before use Do not use within 20 minutes after meals Note 1.Due to different displays and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. Thanks! 2.Due to manual measurement, please allow a measurement deviation of 1-2cm. About