1. Easy to use: The wide-mouth hot water bottle prevents scalding when pouring water. It is very convenient, quick, and safe to pour water into a hot water bottle without spilling. Pour in two-thirds of 80-degree hot water. Note: Do not use a microwave to heat. 2. Health care material: The hot water bottle is made of natural high-quality rubber, which is non-toxic and harmless. The explosion-proof, heat-resistant, and aging-resistant properties of natural rubber are far superior to those of PVC. 3. [Safe and reliable] The rubber thermos has passed a 24-hour explosion-proof and leak-proof test before leaving the factory. 4. Good helper: The pain-relieving hot water bottle can be used as a hot or cold compress to relieve muscle soreness, menstrual cramps, and sports injuries. The best gift for friends, loved ones, and relatives. 5. Perfect gift: Suitable for cozy evenings, especially cold winter days. You can use it at home, in dorms, and when traveling. A warm gift for Christmas, birthdays, Mother's Day, Father's Day, Thanksgiving, and more.