If you often suffer stiff back, sore shoulders, slouched posture caused by long-hour sitting, scrolling phones or lack of exercise, our ergonomic EPP pilates spine corrector will be your ideal daily stretch companion. Constructed with solid high-density expanded polypropylene (EPP) foam, this spinal stretch arc owns outstanding pressure resistance and shock absorption, will not sink or crack after long-term frequent use. The unique textured floating-point surface adds mild massage effect while you lie and stretch, effectively releasing muscle knots and tension accumulated on your back, neck and waist. Adopting professional split curved contour design from classic pilates equipment, the arc shape matches human spinal physiological curve perfectly. When you lay on this back corrector, it provides gradual, gentle traction to your whole spine, decompresses vertebrae, helps you correct forward head, kyphosis and uneven pelvic posture gradually with consistent daily practice. Detachable two-piece design brings flexible training choices: Separate the small wedge block to target cervical stretch, pelvic opening and hip muscle release; Combine the two parts together for full spine extension, thoracic opening and whole body curve shaping. Perfect for yoga beginners, professional pilates practitioners, office workers, students and fitness enthusiasts. Made with rounded smooth edges and anti-slip flat base, this back massager stretcher ensures safe stable use without sliding or scratching your skin. Lightweight compact design enables convenient storage and carrying, you can place it under sofa, bed or car trunk to enjoy spinal relaxation anytime at home, gym or yoga studio. Warm Reminder: This product is fitness stretching equipment, only for muscle relaxation and posture auxiliary adjustment, not a medical device. If you have severe spinal injury or chronic illness, please consult professional physical therapist before use.