High Quality And 4 Levels The spine deck is made of high toughness ABS, not easy to deform or break. There are 4 adjustable setting levels and 88 acupuncture points. Back cracking device the soft foam pad with long-term performance and durability makes you feel more comfortable. Pain Relief for Sciatica, Lumbar, and Back Our back stretcher massager with acupressure provides physical stretching, acupuncture massage, and back support for your back, relieving pain in the lumbar, back, and sciatic nerve. Nbsp;The back cracker board relieves back pressure by stimulating the back, and restores the natural line of the spine, helping to stabilize the spine and improving the flexibility of the back and shoulder muscles. Live Your Healthy & Active Life Back pain relief, deeper sleep, and improved mobility with the spine deck, designed to help you enjoy your life. Nbsp;Beginners or those with a sore lumbar spine can add a soft cloth pad or towel on a spine cracker when they start using it to avoid direct contact with the hard waist plate, causing hurt. Upgraded Thickened Spine Protection Cushion & Chair Strap In back cracker popper We updated the Thicker Foam Cushion to provide maximum protection and comfort of the back spine.Chiro board comes with a Chair Strap for fixing, the length is suitable for most chairs in the office or home. Back stretcher for lower back pain relief great for use at home, at the gym, in the car, or at the office chair. Enjoy Massage and Stretching for 5 Min a Day Bring your cervical spine back to youth and improve back pain symptoms! This spine board is the best gift for parents or friends with back pain.