Hand Warmer / Hot Pack

Features:
1) Instant heat up to approximate 54°C when activated 
2) Can be reused more than a hundred times by following the instruction
3) Can be used outdoor for physiotherapy
4) Especially effective on muscle aching, back aching, cramps arthritis pain 
    and tenontodynia 
5) To recharge: place the hot pack in boiling water with cloth below, note, 
    prevent the plastic bag from contacting the bottom of the pot for about 5 
    minutes or until all the crystal is dissolved
6) To activate: place the metal inside between forefinger and thumb, press 
    against is to start crystallization, when the crystallization completed, 
    squeeze the hot pack to make it soft and ready to use
7) Excellent physiotherapy: turn the protruding button downwards, rub it 
    until it becomes soft, this hot pack gives soothing effect to rheumatic 
    conditions of joints as well as pain caused by abdomen, stomach, waist,
    leg, shoulder, neck and nerves. It also stabilizes the body temperature 
    in winter
8) Store: when boil the pack in water for 4-5 minutes until it turned in liquid 
    state, must put a piece of cloth under it to prevent being damaged by
    heating and keep it into a box after finished