The Lower Back Wrap is just right for small to medium size areas. Perfect for relieving stress, tension, muscle pain, stiffness or cramping. Filled with 12 healing herbs and the highest quality, natural grains available. Microwave for instant heat therapy or chill for instant cold therapy. Hot or cold the Lower Back Wrap can help you relax, rejuvenate and restore your body and soul. Dimensions: 13" x 11" x .5".