30pcs Summer Cooling Patch Mobile Phone Heat Dissipation Forehead Cooling Sticker Condition: Item Type: Cooling Sticker Main Ingredients: Non-woven fabric, water-soluble gel Quantity: 30pcs(2pcs x 15 Bags) Size: Approx. 11.5 x 5cm / 4.5 x 2in Main Performance: The PH value of the cooling sticker is between 5.5-7.5. The adhesive force of the cooling sticker is 0.3kg / c㎡-0.6kg / c㎡. Validity period: valid for 3 years from the date of production, the date of production is on a single PE bag in the box. Storage method: store in a cool place, it is better after refrigerating, please do not put it in the freezer layer. Instructions for Use: 1. Tear the package along the gap, take out the patch, peel off the lining film, and stick the gel surface directly on the forehead or temple, or on the neck aorta. 2. In order to accelerate the cooling rate, several stickers can be added to the left and right carotid arteries, left and right axillary arteries and left and right femoral arteries at the same time. 3. The adhesion of this product increases under body temperature. If a small amount of gel adheres to the skin, wipe it off. 4. 1-3 times a day, each sticker can be used continuously for 8 hours, can not be used more than 12 hours. 5. If you have a fever for 12 hours, you should see a doctor immediately.