Duro-Med Industries" amazing TheraBeadsDuro-Med Microwaveable heat products represent a major breakthrough in moist heat therapy. TheraBeads delivers moist heat safely and effectively. By utilizing the convenience of a microwave oven, TheraBeads provide therapeutic moist heat at the correct temperature levels needed for effective therapy. Provides soothing moist heat through a convenient elastic wrap system that adjusts for 38" to 55" with an adjustable hook and loop closure. Utilizes 5"x12" moist heat pack which is ideal for use on lumbar area.