Just put it in a space below 18 degrees the refrigerator for 20-30 minutes, then take it out and use it. Cooling Neck Wraps can also be cooled in ice water or air-conditioned room. The use time is about 60-120 minutes (depending on the weather and body temperature to determine the use time).
WARM TIPS: Due to temperature, you may be liquid when you receive the product, which is normal. Put it into frozen or below 18 degrees Celsius water before use and it will become solid.
Reliable Material: the surface of these hanging neck ice packs is made of PVC material, smooth to make you feel comfortable when wearing it; The inside is a novel PCM phase change material, which can quickly cool down under certain conditions, automatically freeze, relieve your hot
Relief Hot Flashes: provides instant relief from heat, helps with hot flashes, cools down quickly, stays cool for a while, works well to cool down in hot weather and find it useful for physical work in a hot environment, tremendously helpful while working outside or in a warehouse
Safe to Use: these hanging neck collar ice packs have a moderate temperature and can maintain a certain constant temperature after freezing, so as to achieve a long term cooling effect; At the same time, this temperature will not cause frostbite to the skin, and it will not stick to your neck after long term use, easy to use, convenience for you to do housework