| Hello,welcome to our shop,Lifestyle Electronics,for shopping,wishing happy and happy,Product Specifications: These cooling patches can cool down temperature, refreshing your mind and relieve fatigue. It can keep 8 hours of continuous cold. Its physical cooling principle is mild and safe. You can attach it to many parts, such as forehead, neck, armpits, hands, etc. They are very suitable for summer use, can be carried easily. Principle: The patch coated with a polymer hydrogel on a non-woven fabric substrate, which reduces the surface temperature of the human body through the evaporation of its water, thereby achieving the effect of physical cooling. Precautions: 1. Do not use | |