Back support: lumbar support straps can provide additional support and effectively reduce the strain on the lumbar spine and lower back muscles. For activities that require long standing, bushing or lifting, a lumbar belt can help maintain a correct body posture and prevent fatigue and discomfort of the lumbar spine. Lumbar traction device: our lumbar decompression belt is equipped with an extension belt that can adjust the tightness in multiple directions. The extension belt can be used according to the actual needs. size fit 29-49" waist that can support up to 49" waist Powerful support: there are several air columns on the lumbar support belt, after inflating, it supports the lower waist by 360. Effective relief of back pain caused by herniated discs, lumbar muscle strain, lumbar nerve compression, etc. caused. Inverted C-shaped design. The lumbar support is ergonomic. Large tensile force: large air expansion force expansion columns are evenly distributed in the waist and stretched in several places at the same time to ensure that the intervertebral space is stretched and the effect is good. Perfect purposes: it is suitable for the care of men, women and ages. The lumbar back decompression straps are very comfortable to use and are not restricted by time and place. They are lightweight and tight fitting and can be worn independently of movement, travel, work, rest and driving without affecting movement. You can operate it independently for traction.