Heating Sheet, Adult Cooling Sheet, 16 Sheets x 2 Set, Kobayashi Pharmaceutical Bulk Purchase, Bonus Included, Cooling Sheet that can be used as soon as possible in the event of sudden heat generation. A gel sheet with a cooling sensation that contains plenty of moisture and absorbs heat for a cooling sensation. Adheres firmly to your forehead. It wont peel off even when you toss and turn. The cooling effect lasts approximately 8 hours per piece. Weak acidic sheet according to manufacturers skin temperature cooling test.