Back & Lumbar Support Cushions Back Stretcher for Pain Relief, Back Stretching Device, Multi-Level Back Support and Massager with Acupressure Points, Posture Corrector and Spinal Stretcher for Lower and Upper Muscle Pain Description: Material: ABS plastic + sponge pad Level: Three gear adjustment Scope of application: cervical spine, lumbar spine, legs Maximum acceptable weight: 250kg / 551.16 pounds Packing size: 400 * 250 * 30mm / 15.75 * 9.84 * 1.18 inches Package weight: 540g / 19.05 ounces (Note: Due to manual measurement, please allow slight measurement deviation.) Feature: Support Your Back Needs: Our back support stretcher is carefully designed with 96 massage points to act as a self massager. This upper and lower back massager helps loosen up tight muscles and helps reduce back pain while keeping you comfortable. Protect Your Spine Posture: The adjustable chair massager gently stretches and massages the lower back while reducing the pressure on your spine. Thanks to the ergonomic design it promotes a straight and upright posture without causing any discomfort. Durable Comfortable: We made our lower back pain relief stretcher using sturdy ABS material that can support up to 300lbs along with a soft and gentle foam layer to make sure you stay comfortable whether sitting, lying down, traveling, or exercising. 3 Levels of Traction: This back posture corrector and massager are designed to give you the level of stretch thats right for you! You can choose from 3 stretch levels that include low, medium, and high traction to provide the perfect fit for women and men. Lightweight Portable: Thanks to the lightweight coupled with the durable build, our chair and car back support stretcher can accompany you on all your travels so you can use it anytime. Simply use it 5 10 minutes a day whether in your car, office, gym, etc.