ThermoActive LSO Back Support Traction Units Package includes: Jobst Opaque Sensitive Package includes: Remove the probe cover 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 Patented technology provides circumferential compression in conjunction with cooling or heating therapy * Each support features 3 components: an anatomical wrap with easy to adjust hook and loop