There is a soft knit cover to prevent the hot surface from being in direct contact with your skin to cause burns.
Made from food grade silicone, and recyclable, durable, safe and eco-friendly.
Microwave oven available, can be heated by microwave oven, take off the knit cover and fill in cold water, the heating time less 3 minutes and the heating power should be not over 1500W.
Large capacity and wide mouth design, easy to fill up water.
Fill with cold water then put it into refrigerator, you will get a ice bag. The silicone water bag can be used as a cold compress for pains, sports injuries, fever and reduce swelling.