The original moist heat pack designed for use in soothing sore muscles aches and pains * Designed specifically for relief of nagging lower back pain stomach cramps and leg arm or shoulder aches and pains * Adjustable strap can be comfortably secured in various positions on the body for complete mobility * Use it hot or cold * Filled with 100% natural organic grains * 20.75 L x 7.5 W with a 27 elastic strap attached (unstretched); when stretched the maximum length is 72