Sell - [whoopee!] Re-usable, Self-heating Hot Packs

详情

HOT-PACKS
Reusable and portable packs for sleeping, walking, working and resting.

How to use : Snap the metal-chip inside the pack slightly. This will initiate a chemical reaction that causes the pack to heat up and harden. Hot Pack will stay warm for several hours.

How to reuse in boiling water : Wrap the used-pack in a cloth or towel and immerse in boiling water for approximately *0 to *0 minutes, until all crystals inside the pack have disappeared.

Cautions : Do not place it directly on skin after boiling and do not puncture. Do not bend the metal-chip inside the pack.