This is the orthopedically designed lumbar support cushion that uses warm and cold therapeutic relief to ease lower back pain. Recommended by Chiropractors and Healthcare Professionals, the highly-resilient foam cushion provides proper spine alignment to reduce stress and strain on the most weight-bearing portion of the back. A built-in sleeve holds the reusable gel pack that can be warmed in the microwave or cooled in the freezer to reduce pain and inflammation while supporting muscles for all-day support. Unlike lesser foam cushions, the shock-absorbent gel will not flatten over time, and an elastic strap secures the cushion in the user’s preferred position so it does not slip each time one gets up or sits down. Designed for use in an office chair, couch, or car, the cushion is topped with a removable and machine washable cover. Black. 14" L x 13" W x 5" D. (2 lbs.)