Description: No batteries or electricity required, our hot water bottle is easy and safe to use. It can be used to keep your both hands and belly warm in cold weather, and relieve physical local pain effectively. Anyone who receives our large capacity hot water bottle as a gift will love it. Great for various kinds of festivals or special days. The design of cartoon patterns make it more cute and eye-catching. It is made of high-quality flannel and PVC material. The length of the outer shell is 20.5cm and width is 15cm. This product is perfectly suitable for winter, office, school, home, household, etc. Item Name: Hot Water Bag Material: Flannel, PVC Capacity: 500ml Style A: Double Layer Hot Water Bag Style B: Double Layer Hot Water Bag with Adjustable Strap Features: Super Soft, Adorable, Long Lasting Size Details: Outer Shell: 20.5cm x 15cm/8.07" x 5.91" (Approx.) Inner Hot Water Bag: 17.5cm x 11.5cm/6.89" x 4.53" (Approx.) Adjustable Strap: 150cm/59.06" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hot Water Bag