Rechargeable Hot Water Bottle This hot water bottle warms up the silver contents when charged, which is then placed inside a Korilakkuma pouch to be used as a hot water bottle. Perfect for cold winters! It's very easy to use, as you only need to charge it, and there's no need to replace the contents! Operation has been confirmed. There is no box or instruction manual. The transparent cover on the connection part of the heat storage cord is missing (see photo ④). Please refrain from purchasing if you are concerned, as this is only a visual inspection. Will be shipped via Rakuraku Mercari or Yu-Yu Mercari. Packing materials may include reused cardboard.