Thermalon First Aid Non-gel First Aid Wrap delivers therapeutic pain relief treatments within the prescribed time & temperature range needed for true analgesia. The soft pad conforms whether cold or hot. Unlike gel packs & other cold products, THERMALON Cold/Heat non-gel products maintain consistent cold or heat distribution. ADVANCED GEL-FREE TECHNOLOGYSimply Freeze or Microwave & ApplyNon-Toxic, Latex FreeTimed Released Cold & Heat (Prescribed time & temperature)