❤ Large spiral bite, tightly stitched, dripping water does not leak, built-in drain, water is easy to drain away, keep dry and hygienic. ❤Food grade silicone material, all aspects of safety, more environmentally friendly, no irritating smell, suitable for all types of people. ❤Multi-purpose use, inject warm water or cold water, the microwave oven is heated after the hot water bottle; inject cold water into the refrigerator and turn into an ice pack.