Thank you for viewing my work. This is a belt that can be wrapped around the waist, convenient for when you want to warm or cool a part of your body. It has a vertical pocket to act as a pocket. Velcro on the sides of the elastic. No metal fittings so it won't hurt when lying down. A cooling bag made easily with the second set and aluminum sheet is included as a bonus. * Insert a cold pack: When you have a fever, Heatstroke prevention in hot weather, Bruises and muscle pain from sports, Itching, On the back of a stroller * Insert a heat pack: When you have lower back pain or old injuries, For warming activities, For cold weather対策, When you want to warm your back but don't want to stick it to your clothes, or when you want to change the position of the heat pack, If you only use a little of the heat pack, you can put it in a zip lock bag and reuse it. * As a pocket for keys and cell phones: When you're waiting for a phone call and are concerned about the time, For a little gardening, taking out the trash, or chatting with neighbors, locking your keys is essential. * For valuables that you can't carry a bag and want to hide: When sleeping on a late-night bus or group trip, Staff at events such as bazaars and sports days (Please be careful not to drop it as it has Velcro) * Heatstroke対策 Freeze a pouch of juice slightly for hydration and cooling goods Depending on the size, you can wrap and secure it to various places like the thighs, calves, knees, arms, shoulders, waist, head, and neck as shown in the photo. (The elastic belt can be removed, so you can also use your own string or belt) Since it can become high or low temperature, please check the temperature and avoid direct contact with the skin. The whole thing is black, the elastic is 2.5-3 cm wide, The soft Velcro is 20 cm, and the hard Velcro is 10 cm. When not stretching the elastic, it can be fastened at 70-80 cm. Please check the size before considering. Bag part Navy with a gray-looking chambray and navy paisley The part that goes in is about 10 cm wide x 16 cm long I have no medical knowledge at all. I made this hoping it would provide relief, and it's been useful all year round, But if you have any concerns, please refrain from purchasing as it could worsen your condition. Thank you very much m(__)m