Use as the first time:

1. Press the hot button disc several times inside the bag. The liquid shall turn to solid and release heat soon.

    (do as the second time usage if the bag is solid )

2. You can press the bag face to make the bag flat and the heat can spread easily.

3. Put the bag on where you need when it's hot.

Use as the second or more times

1.The bag shall turn cold after you make use of it for about 30 minutes. You should heat it in the 

   boiled water for 5 minutes. You can use it again after It turns to

   liquid. Be care of scald. 

2. The liquid should turn cool and you can use it according to the step of the first use.

[Precaution]:

1. Don't puncture or abrade the bag with spiculate stick.

2. Dont press the button if the bag is releasing heat.

3. Turn to a doctor when necessary.

4. Make it away from children.

Contents: Sodium acetate,Water