Dr. Cohen’s Heatable Large Massage Ball (Wholebody Healing Kit)Revolutionary heated design: the world's first and only patented heated massage microwave or boil for deep soothing heat. The quality construction lasts for thousands of uses, over many years Patented pain relief: developed by Dr. Cohen over 15 years of research, acuproducts stimulate blood flow to help 'flush out' Pain causing toxins in tight, stressed muscles Deep tissue recovery: use the precision designed nibs to soothe and release tight legs and