HIGH QUALITY: Made of silica gel, the gel material can be heated in a microwave oven. It is a plastic thermoplastic material that is odorless and recyclable. The advanced thermoplastic hot water bottle retains heat per meter of time than traditional rubber water bottles and is also suitable for hot compress or ice bottles. PROTECT FROM BURNS: This hot water bottle comes with an extra thick knitted cover that is soft on the skin is. The knitted cover not only can avoid direct contact with the skin and bottle to prevent burns, but also keep heat for several hours. SMALL AND PORTABLE: Size, 10.3cm*16 cm, capacity: 320ml, size suitable for all adults and school children, gently pour hot water, make sure the water temperature is not too hot (below 80 C), pour two-thirds of the hot water bottle is better when Keep watering away from children and your own face. THERMOTHERAPY OR ICE: Heat therapyFor cold hands and feet, non-inflammatory joint pain, menstrual pain, can relieve abdominal and menstrual cramps, colic and lower back pain. Cold therapy: ice compress for sprains, swelling and pain, toothache. BEST GIFT: The hot water bottle can effectively relieve the discomfort of the neck, shoulders, back and abdomen, the muscles of the whole body relax and is suitable for children, babies, adults and the elderly. It is lightweight and portable, suitable for family dorm and camping. This is the warmest gift for a family in winter.