Indications – 1) Severe Lumbar Sprain 2) Severe degree of Lumbar Spondylitis, Spondylolysis, Spondylolisthesis Features – 1) Metal cage on dorsal side with spring action to provide better compression & immobilization. 2) Two metal strips in shape of Lumbar Sacral spine give extra support. 3) Double lock on front side gives extra support for better fit