【Limited Stock】Just heat it in the microwave!! Easy Hot Water Bottle 1000ml or 2000ml, 5 Colors, with Knit Cover. Microwave-safe, reusable hot water bottle. Winter cold対策, measures against coldness, for those who feel the cold easily, long-lasting, cute, adorable, soft, fluffy, simple, heat retention. ‐ Mercari: Shop from Japan