Product Description: Introducing the Custom 400/500ml Kawaii Sanrio Portable Thermos Mug, featuring adorable Cinnamoroll and Kuromi designs. These stainless steel thermos cups are perfect for keeping beverages at the ideal temperature for longer. Designed with a cute and portable aesthetic, they are not only functional but also make great gifts for fans of Sanrio characters. Whether for school, work, or travel, these thermos mugs ensure your drinks stay hot or cold while showcasing your favorite characters.