Landmark Medical Systems Inc. MKO Moist Heat Large Pad

professional grade therapeutic relief of aches and pains, muscle, arthritis, sinus and menstrual pain + microwave-activated moist heat, or can be frozen for effective cold therapy + no added water necessary; washable and reusable + no plugs or elements and up to 30 minutes of continuous treatment + odor free with natural mineral beads; won't promote bacteria or mold growth