parameter
Spec. 700 g. Dimensions: diameter 20 cm, height 12.5 cm.
【How to use】
1. Pre-cooling: put in the refrigerator for 30-60 minutes, or in the freezer for more than 15-30 minutes.
2. Use: knead before use, check to ensure that the temperature is comfortable to the body; Then wear it on your head.
3. If you use it again (re-cooling only needs to be put in the refrigerator for 15-30 minutes, the freezer for 10-15 minutes).
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