Hokkairo Non-Stick Regular, Pack of 10 industrial_Oct2022 please note the self-heating side

please note the self-heating side should be on the back of your neck

so it looks like there's some production grime on it

The device also works as a night light without affecting your electricity bills

or Baserunning

Hokkairo Non-Stick Regular, Pack of 10 industrial_Oct2022 please note the self-heating sideHokkairo Non Stick Regular, Pack of 10 Product Description Precautions for Use: Low temperature burns can cause symptoms such as crimson and blisters when the heating element is placed higher than your body temperature for a long time. Please note that there may be cases of low heat burns without awareness symptoms. Caution to prevent burns at low temperatures. Do not use directly on skin. Stop using when you feel hot. Please avoid using it while