Thank you for viewing my work. This is a belt that can be used to wrap your body with heat packs, hot water bottles, or ice packs. The rubber belt has Velcro. It may be easier to use when it's difficult to secure by yourself or when it loosens. It's a set of 3 items: a case, a rubber belt, and an aluminum sheet bag. It will be shipped via Yu-packet mini, folded in half. * Cooling * When you have a fever * Headaches * Heatstroke prevention * Muscle pain, bruises, itching, etc. * Warming * For cold protection * For warming activities * When you have lower back pain * When old injuries ache If the disposable heat pack still has some heat left, you can put it in a zip-lock bag and reuse it. You can also use the stick-on type by putting it in here. The example of how to attach it may not be possible depending on the size of the rubber belt or bag. You can also use your own string or belt to use it effectively. You can fix it to your body, or you can wrap it around a chair or a floor chair. Please check the size to make sure it's not too tight. I hope it can be useful for the whole family in various situations. ⚠ Be careful not to put too much weight on your lower back or stomach! Please check the low and high temperatures and the weight before use. I have no medical knowledge at all. It's a product that saves electricity bills and doesn't create waste. It's a reusable product, and I made it just for comfort. At my house, it's useful in various situations throughout the year for heat and cold protection, and for first aid. Black rubber belt Rubber width: 2.5 cm Soft Velcro: 20 cm, Hard Velcro: 10 cm When the rubber is not stretched, it can be fastened at about 70 cm to 80 cm. Bag part Navy jersey-like fabric, no lining The part that goes in is about 20 x 17 cm Aluminum sheet bag Keeps cold and heat for a long time, prevents overcooling and getting wet I also sell other patterns in medium and small sizes, for arms and legs, and sizes that can be used as a pocket. I also sell extension belts, but please consult with me for changes or orders for other sizes. Thank you.