Durable and safe: Hot water bottle is made of rubber to ensure maximum safety, perfect heat transfer and keep the water warm for longer. For safety reasons, the hot water temperature should not exceed 80 degrees Celsius. Wide bottle nozzle - Oversized hot water bottle hot water bag 23 x 14 cm (9 x 5.5 inches); plush cover 31 x 21 cm (12.2 x 8.2 inches); waist cover 107 cm (42.1 inches). Suggestions: 1. Do not exceed the hot water temperature of 80C. 2. Fill up to two-thirds. Quality plush waist cover Comfortable plush waist cover comes with a plush waist cover designed with a super soft double panel, keeps your hands and waist warm at the same time. Prevents the heat from coming into direct contact with your skin and causing burns. Long-lasting warm and environmentally friendly: Our hot water bottle bag is great for pain relief, arthritis, and sports injuries. Hot therapy helps relax your tired muscles and tense shoulders from stress and overexertion. They can also be used for cold therapy, simply adding cold water or crushed ice. Quality Assurance: We also offer 30 days of unconditional return. We promise to try our best to solve your problems. If you are not satisfied, we will respond within 24 hours. Great gift: It can be used as a cold compress for children with fever. Helps improve blood circulation, relieve menstrual cramps, and relax during