Plush coat: The coat is made of high-grade plush material, which is very soft, and can keep warm for a longer time, while increasing beauty. Size: The size of this hot water bag (7.87 * 6.7 inches) allows you to carry it better. You can take it out in your bag. Even if it is full of water, it will not be very heavy. Safe and easy to use: Pour 80 degree water into a rubber water bottle first. 2/3 satisfaction is the best, then squeeze out the excess air, and finally, tighten the cap and you are ready to use. Multipurpose: The hot water bottle can be used not only for heating, but also for hot and cold therapy. Hot compresses can relieve knee pain, back pain, menstrual cramps, and cold hands and feet. Cold compresses can relieve fever and cool down. Material: Our hot water bottle is made of high quality PVC material, which is odorless and nontoxic. BPA free. And compared to the rubber clear thermos, this one is more durable and keeps the heat longer.