About this item Material: The hot water is made of rubber to ensure maximum safety and transfer the heat perfectly, keeps the water warm for a long time. Wide mouth for easy , spurt lip to prevent leakage and spills, with screwing cap just slightly more than finger tight. Widely Used: Hot water bottle bag is good for relieving menstrual cramps, aching muscles and joints, arthritis, sports injuries. Hot helps to your tired muscles and tensed shoulders from stress and too much workout. The comfortable and luxurious waist cover comes with a plush waist cover, designed with super soft double inserts to keep your hands warm at the same time. Helps prevent heat separation from touching your skin directly, which can cause burns. Multi-functional use: our Hot water bottle bottle is a great work for relieving pain, arthritis, sports injuries. Heat helps to Comfortable the pressure on your tired muscles and tense shoulders and too much exercise. They can also be used for cold treatments, easy to with cold water or crushed ice. Good gifts: It can be used as a cold compress for children with fever.It helps to improve blood circulation, relieve menstrual pain, and feel more relaxed during special periods.