Hot and cold gel material ASP7201

Hot and cold gel pad ASP7201 for use as a cold compress: you must keep it in the freezer for at least two hours, then place it inside the belt or wrap it with a cloth and then use it. For use as a hot compress: you must boil water in a container, then put the pad in the container after removing it from the heat, and leave it in the boiling water for 6 to 10 minutes, then place it inside the belt or wrap it with a cloth and then use it.