Back Stretcher for Pain Relief, Spine Deck, Lumbar Back Pain Relief Device, Lower and Upper Back Stretcher Support, Multi-Level Back Massager Lumbar, Pain Relief for Herniated Disc, Scoliosis

Color:Blue ?PRODUCT INFORMATION: 14.5 * 9.5 inches (widest) The Height of the Third Gear is Respectively First gear: 2.8 inches  Second gear: 3.6 inches Third gear: 4.4 inches   ?HOW LOWER BACK STRETCHR DIVICE WORKS?  When lying down on Magic Back, gravity allows the front of your body to effortlessly stretch out and upwards, and the surrounding muscles start to relax, gently decompressing the discs in your vertebrae, realigning the spine, relieving tension and pain.You'll be amazed by how good you feel after just one use! ?WHY CHOOSE JINRUNCEN BACK STRETCHR DIVICE?   JINRUNCEN adheres to the spirit of craftsmanship, we have a mature research and development team, focusing on the research and development of fitness and life products, and earnestly do a good job in each product.  Advantages and differences of our back cracker lumbar support:  Material upgrading - able to bear the weight of 220lb  10 magnets - physical therapy principle of adding magnets   ?ASSEMBLY GUIDE  Step  1 Kneel on the ground ,secure the wide end of the base against your knees, Slide the wide end of the support Arch into the single slot on the wide end of the base , then lift it up firmly and place it in the arch level that you desire.(if you think it is difficult to adjust, you can adjust the required gear first, and then slide it into a single slot at the wide end of the base, or put it in the sun.)  Step 2 Place the lumbar traction behind you in the area that you want to stretch. You can place it in your lower back, mid-back, or upper-back.   Using the device 1-2 times a day for 5 minutes a session,stretch the back muscles,restore the natural curvature of the spine.