Easy to use - no need for pre-cooling.
The ideal, simple and quick alternative to a conventional ice pack.
Provides on the spot cold therapy for bruising, sports sprains and muscle injuries.

Pop the bubble inside the pack to relaease the chemical and give a quick mix and it goes ice cold and lasts for ages.  You may want to wrap it in a thin cloth for comfort.

Don't tell anyone, but I sometimes use them in my coolbox!