They were specially designed to keep the heat longer, thanks to their special composition. In addition, the reinforced metal screw cap prevents losses and spills, so there is no risk of getting burned. Last secret? The surface has been designed to release heat gradually, for relief that grows by the minute.
Relieve pain resulting from muscle, cervical contractures, arthritis, cramps or menstrual pain. Once applied to the painful part, they relax and relieve tension in your tissues in a natural way. A traditional, simple and effective remedy.