These digital heating pads are the first medical grade electric heating pad available to the public. Digital moist heating pads, as opposed to dry forms of heat, draw moisture from the air and retain it in specially designed high-grade ceramic heating element cells and delivers that moist heat deep into your muscle tissue for maximum relief similar to a deep tissue or shiatsu massage. This heat pad is constructed from double stitched 100% premium grade durable corduroy with a soft plush flannel cover for ultimate durability and comfort. This heat therapy pad have a state-of-the-art digital hand controller allowing the operator to precisely program the temperature and treatment time.