Comfortable anatomically correct sitting is essential for both good health and personal well being. Sitting improperly in the same position for extended periods of time can cause unnecessary backaches strain and excessive fatigue. Jobri prides itself in the design and manufacture of high quality back support products that are specifically structured to follow the natural shape of the human body. Developed in cooperation with doctors and the medical profession the BetterBack is recommended throughout the world by chiropractors physiotherapists doctors and thousands of satisfied users. Use with BetterBack Lean On or as a stand alone support. Provides adjustable lower-back support for pain relief and comfort. Superior Polyurethane Foam.