Welcome to Mayumi

Product size: 173x110x20mm
Weight: 116g
(How to use)
Place this product on a flat surface and hit it with a hammer. If the water bag inside is torn and it gets cold, shake it well before use.
* Since the temperature will suddenly drop below the freezing point, be sure to wrap it in a towel, handkerchief, etc.

(Reuse method)
Wipe off the water on the outside of this product before cooling it in the freezer.

(Cooling time)
Approximately 50 minutes at room temperature of 30 ° C

(component)
Niban, water

made in Japan