This Far Infrared Therapeutic Pad has a soft, fluffy, washable cover with Velcro straps to hold it to almost any body surface (legs, stomach, back, wrist, belly, should, back, thigh, etc). Used on the back, it is most effective for lower back pain caused by lumbar osseous hyperplasia (abnormal bone growth) and disci intervertebrales protrusion. FIR heat from this pad could increase micro-circulation around wrist area and speed up treatment for sprains. It eases discomfort from muscle or menstrual cramps. It is perfect for cozy, soothing warmth and relaxation, for fatigue, or injury recovery. Powerful Far Infrared heat waves penetrate the body surface more effectively than other energy forms. They penetrate up to 2 inches deep through the dermis (middle layer of skin) into joints and soft tissues. Use this pad to warm the body surface to dilate blood vessels & improve fluid circulation. It brings more oxygen and removes toxins from inflamed cells for faster healing and fatigue recovery. The deep penetrating power at high temperature could induce more sweating through fat glands to expel toxic substances. Many chronic conditions often disappear once toxic chemicals are purged by the skin. FIR therapeutic pad offers simple relaxation as they melt away the stress and tension of modern life. This gentle warmth therapy gives an overall massaging effect, soothing nerves and muscles. It only takes a short time for you to feel rejuvenated and renewed, restored in both body and mind. FIR therapy is proven to be the, safest, most effective and economical way to excrete body toxins. It assists in weight loss, pain management, skin purification, detoxification and stress reduction. It provides relief to patients suffering from arthritis, chronic fatigue syndrome, and fibromyalgia. A household necessity for members of all ages. Avoid bending sharply along the short side of this pad.