* A patented removable gel pack that can either be frozen or heated depending on the use; and a unique hand-held pump that adjusts the level of compression * Fits circumference up to 46  as is or up to 66  with extension straps that are included * Indications: Lumbar injuries and strains  Thoracic injuries and strains  Post-Surgical recovery  back muscle soreness and spasms  Sciatica  SI Joint pain  arthritis