Thank you for viewing my work. This is a belt with pockets designed to hold things like hot water bottles or heat packs when you want to warm your body, or soft ice packs when you want to cool down due to heat or bruising. I made it for times when you're enduring the cold or heat alone, when you want to do chores around the house or in the garden, or when you want to lie down and apply it to your back. I use it by wrapping it around my waist. I've included a bonus insulated bag made simply from aluminum foil. Use it to keep things warm or cold for longer, and when things might get wet or too cold. For heat and cold対策, For fever, For lower back pain, For warming activities, For muscle pain, bruising, and icing for itching, etc. Wrap and secure it to the affected area of your body by yourself. The bag can be removed, making it easy to wash, and you can also use it with other belts or straps. It's also comfortable to use on your back by attaching it to a chair or floor chair. For children riding bicycles or babies in strollers, use it on their backs for heat and cold対策. If you only use a little of a stick-on heat pack, put it in a zip-lock bag and reuse it the next day. You can also secure stick-on heat packs to your body. I hope it can be useful in various situations, such as outdoor activities like playing in the river, watching sports, or sports days. Note! It's heavy, so if you have lower back problems, please consider how to use it carefully to avoid making it worse. It can also get hot, so please check the temperature and avoid applying it directly to your skin. I have no medical knowledge at all. Saving on electricity bills and reducing waste. It's tough to just endure! I made this hoping to make good use of reusable products. It was made solely based on my own comfort. Please consider carefully, as I don't want to make things worse. Bag section Camouflage pattern, no lining The opening is 21.5 cm x 17.5 cm Black rubber Rubber width 2.5 cm or 3 cm, The soft Velcro is 20 cm, the hard Velcro is 10 cm When the rubber is not stretched, it can be fastened to about 70-80 cm. If there are pre-made sizes available that I'm selling elsewhere, I can change it for the same price, so please consult me before purchasing. I also sell other patterns and sizes, as well as heat pack sizes for icing, and sizes to wrap around arms and legs. Please take a look if you'd like. Thank you very much m(__)m