This Thermalon Microwave Activated Heat Pad is lightweight, a perfect size and shape to provide moist heat to the abdomen, back, shoulder or hip. It can be folded for easy storage in a night stand, and offers comfort when in bed, in the car, or lounging around the house. A member of our household is a cancer patient undergoing chemotherapy and radiation and he couldn't get along without this Thermalon pad. Highly recommended!