Number of Pieces:One Unit Material:Composite Material Model Number:B71-1 Effect:Anti-fatigue Item Type:Braces & Supports Application:Waist Lumbar Support Belt Self Heating Magnetic Orthopedic Back Brace Support Adjustable Waist Trainer Belt Pain Relief Spine Straight SOLVE TROUBLES:Lumbar support belt can effectively relieve lumbar disc herniation or bulging, lumbar muscle strain, lumbar sprain, fracture and postoperative rehabilitation fixation problems. This lower back brace allows you to enjoy your life without bothered by low back pain. EXTRA WIDE:The design height in the back,can be hold your entire back,Meet the needs of various people. 4 PCS METAL SUPPORT + 3 PCS SPRING SUPPORT:Back support belt with 4 metal and 3 springs strips to provide normal support,such as lifting,housework,gym,office working,Shape the waistline,When teenager use it can making sure the waist in proper posture,Achieve back corrective effect. SPECIAL MATERIAL:One-piece high-elastic fabric with durable Velcro provide wide compression for your lower back.Lower back support keeps your back straight to relieve pain.