Environmentally friendly and healthy material: the Kuyou hot water bottle made of food grade silicone material is environmentally friendly and non-toxic, does not release BPA and no special smell, even when heated by boiling water. It also keeps the heat longer than conventional hot water bottles with lids. 100% leak-proof and maximum safety: The cute cartoon hot water bag is made by an integrated molding process, which makes the water bag good tightness. The anti-spill lip prevents water from splashing out like the old rubber lips, reduces the risk of hot water burns and ensures maximum safety. Microwave heating available: the hot water bag can be heated with a microwave oven without having to change water. This is more convenient to use (the heating time is 2 minutes and the heat output should not exceed 800 W). Then fill with cold water. When you put it in the refrigerator, you will receive an ice pack that can be used as a hot compress for pain, sports injuries, menstrual pain and other common pain. Perfect size for all ages: the cute mini hot water bottle with the size 163 x 130 x 55 mm, volume 386 ml. It is small, lightweight and portable for home, camping, office, etc. It is a perfect size for women, children, boys and girls. Easy to use, pour into 3\/4 80 hot water into the bottle and then screw the lid. Large Gift ChoiceThis eco-friendly mini silicone hot water bag for children is beautifully crafted and comes with gift packaging which is available in 2 different colors (pink, blue). Can be used as Christmas gift, birthday gift, Valentine's Day gift, gift exchange party, very suitable for family and friends.