Gel heater MAGIC HOT-PACK filled with a special liquid placed inside a metal lamina which must be broken as to cause the crystallization process of the gel. The generated heat is pleasant to the skin and provides an adequate thermal comfort. After heating, the temperature is about 60 ° C and, depending on environment is maintained for tens of minutes (approx. 1h).In the case of re-use, simply insert the heater into boiling water for about 6 minutes. As a result, crystallized mass will dissolve and the compress will return to the original state of aggregation.