The back wrap is designed to provide therapeutic heat to your sore or stiff back. A natural way to help sooth aches and pain in the back and abdomen, simply heat in a microwave and apply to the affected area. With an adjustable Velcro strap to hold in place around your back and waist. Ideal for treatment of lower back pain, back strain, muscle tension, back spasms, herniated discs, menstrual cramps and more. Soothe abdominal cramps by using it over the stomach rather than the back.