The Only Heatable Massage Ball Available! The Dr. Cohen’s Acuball is a heatable acupressure and massage ball that helps alleviate muscle tightness and pain. The ergonomic design and precision nibs of the Acuball make it very effective at working out muscle knots, increasing blood flow and flushing out muscle waste. The Acuball is the most convenient tool available for massage or acupressure self-treatment! • Relax muscles, enhance joint mobility and increase blood flow • Heatability helps penetrate deeper tissues for greater effect • For a variety of treatments on all areas of the body Heating Instructions: Heat in microwave for 60 seconds (maximum) or boil for 10-12 minutes.