How to Use Your Heating Pad Properly! To prevent burns and ensure long-lasting performance, follow these important tips: Do NOT sit or lie on the heating pad - Always place it on top of your body, not underneath; Do NOT fold or bunch up the pad – Keep it flat to avoid overheating; Allow the pad to cool before storing – Always lay it flat and let it cool completely before putting it away. | XXXLarge for Back & Full Body: The 17" x 33" extra large heating pad is designed to fully cover your shoulders and is large enough for your full back, help reduce stiffness in all body parts, including the neck, shoulders, back, abdomen, waist, knee and legs. The electric heating pad can healp those suffering from a sore back, or menstrual cramps. | Get Instant Comfort: The XXXL heating pad is equipped with dense heating wires, ensuring the heating pad warms up quickly and evenly. Built-in NTC thermistor, high temperature will trigger the overheat protection to avoid discomfort from excessive heat. A good relaxing gift for grandma grandpa. | 3 Heat Settings & 2H Auto Shut Off: The fsa/hsa eligible full body heating pad with 3 heating settings ensures you can adjust it to the temperature you want, providing customized heat for your back, knees, legs, neck and shoulders. It's a great mothers day gift for mom or fathers day dad gifts. | Ultra Soft Flannel & Machine Washable: The XXXL heating pad is made of super soft and comfortable flannel, which provides maximum comfort to your body and fits well to every part of your body. A great gift for Mom/Dad/Women/Men/Teacher Birthday. Plus the detachable cable allows the plug-in moist heating pad for machine washing, offering you great convenience in your daily life.