A1891 Yutaron Hot Water Bottle, Microwave-Safe, Set of 2 How about it for warming up, menstrual pain, lower back pain, stiff shoulders, etc.? This hot water bottle is easily used by simply heating it in the microwave, and provides a comfortable warmth of about 42°C for about 8 hours (with the cover on, inside the futon). 【Colors】 ・Blue, Brown 【Size】 ・Body: Approximately 17 x 14 x 2 cm ・Cover: Approximately 25 x 20 cm 【Weight】 ・Body: Approximately 520g 【How to Use】 ・Microwave: 600W or less: About 4 minutes 700 (800)W or less: About 3 minutes 30 seconds 900 (1000)W or less: About 3 minutes ※ Can also be heated in a water bath. ※ Brand new, unused. The box will be folded and sent in simple packaging via post. ⚠︎ Due to personal storage, there may be some dirt, peeling, or tears on the outer box, but the contents themselves are not affected. Please understand this before purchasing. ⚠︎ Please check the photos carefully for the condition of the appearance. ⚠︎ Since this is a personal inspection, there may be oversights. There are no receipts, proof of purchase, or warranties. ⚠︎ The product will be simply packaged. To reduce shipping costs, we may remove the outer packaging. We may also fold or compress the product for delivery. ⚠︎ Please check the condition and accessories in the images. Regarding accessories, please be sure to look at the images before purchasing to confirm the current condition. ⚠︎ Due to the influence of the shooting environment, the actual product may differ slightly in color. Please understand this in advance. Thank you for viewing.