Deep Tissue Massage Roller - Dr. Cohen’s Heatable acuBack for Back & Neck PainREVOLUTIONARY HEATED DESIGN: The worlds first and ONLY patented heatable massage roller 90 seconds in the microwave or boiling for 12 minutes gives 1. 5 hours of deep soothing heat. Quality construction lasts over thousands of uses, over many years. PATENTED PAIN RELIEF: Developed by Dr. Cohen over ten years of research, acuBack stimulates blood flow to help flush out pain causing toxins in tight, stressed muscles. This fantastic massage tool works