Back Stretcher for Back Pain Relief Multi-Level Back Cracker Board Lower and Upper Back Support for Herniated Disc Upgrade Back Stretcher The ergonomic design of the back cracker, with its individual gravity and curved structure, ensures that lumbar support and relaxes at the same time, but also helps to improve posture and prevent spinal disorders. Adjustable Design Spine stretcher has three adjustable heights, which easily adjusts to the angle and strength that suits your needs and ensures that your back is supported in a stable and effective way during use, relieving the problem of back pain. Safe Material and Won't Break Back stretcher is made of environmentally friendly, wear-resistant ABS plastic, which not only ensures the durability and load-bearing capacity, but also reduces friction and discomfort during exercise. Lightweight and Convenient Back stretcher is made of lightweight material,easy to store and carry, and can be easily used in a variety of environments. Enjoy Massage Our lumbar support offers acupressure, acupuncture massage and physical stretching, enjoy the gentle massage it provides while relieving pain. Perfect Gift for Family or Friend Back stretcher is a thoughtful and practical gift for your parents, loved ones or friends with lumbar problems. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.