Relieve excessive skin tension and remove fatigue. Suitable for summer outings, use this massage tool to calm the skin and relieve sunburn and redness to a certain extent. You can also use it to massage around the eyes after staying up late and crying. Make skin blood vessel contract diastole rhythmically, improve skin blood seeking. Soothing, Antipyretic and anti-inflammatory, suitable for improving dizziness, headache, fever, heat stroke, burns, etc. Please Note: Do not put it in the frozen place of the refrigerator. This product can only be put in the place of the refrigerator where does not freeze. First put some water in a basin, Note that when you take it out of the refrigerator, if you think the temperature is too cold, and then put the massage ice ball in the water for a few minutes.