Durable and Safety MaterialThe hot water bag made of thick natural rubber, non-toxic, odorless and recyclable. Anti-slip and anti-scalding grid texture surface, making sure maximum safety and transfer the heat well. Comes with a soft plush waist cover to prevent burns caused by direct contact with the skin and keep it warm; Non-Leakage A screw plastic cap great help to prevent leakage from bottle. Make sure maximum safety and transfer the heat well. Without risking of leakage and explosion after testing,To be more safety, the temperature of the hot water should not exceed 80 degrees celsius; 2 in 1 Hot Water Bag Use TipsQuality plush warm and comfortable belt, 1L Capacity with the wide mouth design, easy to fill the water bottle and use, follow the below step: 1, Injecting hot water to fill up 2/3 hot water bag. 2, Squeeze out the excess air in the thermos and cover the nut. 3, Tighten the nut. 4, Wipe off the excess water from the bottle. put on the belt warm cover; Pefect Gift Choice Ideal for cozy evenings, especially on cold winter days. You can use it at home, in the dorm, and travel carry-on. Warm Gift for Christmas, Birthday, Thanksgiving Day etc for women or girls; Size & FunctionThe size of Hot Water Bottle set is 120*19cm. We offer 6 colors with different pattern for your choice: grey/brown/black/ dark grey/orange/light maroon, just choose you like.Thick prime and soft artificial plush fur and the ridged outer surface helps maintain liquid temperature,make you more warm in the cold weather;