The contents of the ice pad are ice crystals. The ice crystals are gel-like, similar to jelly. The gel is thick and thick. Different from the thinness of water and the complete solidity of ice sand, the ice crystals in the pad will not flow freely and will not be completely solid. , but can move around depending on the pressure. Therefore, when a person sits on it or on the headrest, it does not feel like there is anything resting on it at all. There is no need for a refrigerator in most areas, and it will automatically release heat when the room temperature is below 27 degrees Celsius. If in some hot areas, the room temperature is always above 27 degrees Celsius at night, please soak in cold water or cool in the refrigerator. This product has been waterproofed. After taking it out of the water, wipe it dry and use it. Since the temperature of the ice pad is set at 30 degrees Celsius, the human body feels cool in direct contact, but it will not cause people to catch cold or catch a cold due to long-term use. Please put another layer of cotton cloth when using it for the elderly, infants and the weak.1. Rapid heat dissipation, suitable temperature, a cool and non-icing ice pad specially customized for pets, smooth to the touch and not sticking to the skin 2. Grab-resistant material, not afraid of scratching, non-sticky, easy to care for 3. The surface is smooth and flat, can be bent and folded at will, not easily deformed, and easy to carryDo not touch sharp objects, do not touch open flames