Sit Straight. Feel Great! Dr. Cohen’s Acuback is a heatable ergonomic back roller that can be used to improve posture or relieve sore back or neck muscles. When used as a back support in an office chair, the Acuback helps maintain an upright posture, relieve back tension and increase attentiveness and productivity. It can also be used as a roller to isolate tightness along the spine and relieve muscle and joint pain in the back and neck. • Heatable to penetrate deep into tissue and increase relaxation and release • Ergonomically designed to help align the spine • Precision nibs help separate muscle fibers and increase blood flow