Range de Yutapon Sumikko Gurashi with Cover #Mikan Yutapon [Product Description] Simply heat it in the microwave for a comfortable warmth that will thoroughly warm your cold feet. It's a soft and comfortable gel-type hot water bottle. The warmth lasts for about 7 hours. (This is a guideline when used inside a futon. The duration may vary depending on the room temperature and usage environment.) It comes with a washable dedicated cover. It can be used repeatedly. *The product is brand new and unused. [Shipping] The shipping label will be affixed directly to the product's outer box. Therefore, there is a possibility of scratches, stains, or dents on the outer box during shipping. Please be aware of the above. Shipping is planned via Rakuraku Mercari Bin (anonymous shipping / Yamato Transport). If you wish to purchase multiple items or combine purchases, please contact us.