[After-Sales Guarantee] -- You can return the undamaged hot water bag and its packaging for 30 days without reason. We offer a one-year warranty. Feel free to contact us by email at any time. [Multi Functional] -- Hot water bag can be used as hot or cold compress for relieving muscle aches and pains, relieving menstrual cramps, sports injuries, etc. [Unique Design] -- The special pattern design on the surface of the hot water bag, high-quality raw materials, and exquisite craftsmanship, making the hot water bag has a more durable insulation effect. [Safe & Easy to Use] -- Hot water bags have passed 24 hours of explosion-proof and leak-proof test before leaving factory. BPA free material is more friendly to pregnant women, the elderly and children. Please fill two-thirds of 80 degrees of water into it. [Premium Material] -- The product is made of high quality PVC material, non-toxic and odorless. Compared to the traditional rubber hot water bags, this one is more durable and longer lasting insulation. Note: Please do not do not use microwave heating.