hand warmer pack

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break off the metal part which inside the pack several times,then there is some white solid will come out & the pack becomes heater and heater,it will be better if you knead it some more times.when the pack becomes cold,please put into the boiling water for 5-10 minutes,then it will change into liquid condition,and becomes soft,after it becomes cold,it can be used again.the instant hot pack can be repeat -used.it can keep health keep warm when in winter.

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gzsophy@yahoo.cn

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