material: ABS+Metal

How to Use:

1. Place the instrument in a refrigerator (3°C) or freezer (-18°C) for about 30 minutes.

2. Please make sure the temperature of the instrument is suitable before use, it should not be too cold to avoid frostbite to the skin.

3.Gently massage with the instrument in circular motions (10-15 minutes) on the use site.