Ideal for Hot Therapy in order to relieve pain, stress, and discomfort in the lumbar/lower back area and abdominal/stomach area. Simply microwave for soothing Heat Therapy. Adjustable (fits all) elastic Velcro strap to conveniently wrap around your body and allow you to get the relief you need while remaining active. Soft Fleece on one side and Cotton on the other side, this product is handmade, all natural, Eco friendly, and made is USA. Product dimensions are approximately 15.5 x 5 x 1 inches ; weight is approximately 1.8 pounds.