Features:Be ready for a hot summer with innovative materials to keep you staying cool. This gel freezes faster and lasts longer than water! No battery needed! No charger needed! Simply place this neck cooling tube into iced water. No ice around you? No worries! It freezes using any AC! Car AC, Office AC, Home AC, ice box, refrigerator, freezer.Enjoy cool time for 4 hours up to 6 hours indoor and 3 hours up to 5 hours indoor. Cold holding time varies depending on the external environment. No risks of skin necrosis or frostbite through cooling by maintaining an optimal cooling temperature.Brand new coolant with NO condensation phenomenon! (dry and cool)! Physical cooling and safer.Description:The liquid inside is imported liquid. The product can be used directly in contact with the skin after being frozen in the refrigerator. The surface will not be fogged and water droplets will appear, and the temperature will always be maintained at about 18 degrees, which is very comfortable to wear! If ordinary water is put in the refrigerator and then taken out, it cannot be used directly in contact with the skin, and it will be very cold! Our cold neck ring is made of a special liquid that is very comfortable to wear directly in contact with the skin!Specification:Material: environmentally friendly and healthy PPFor men and womenPurpose: Cool down, relieve dryness and heatPackage Included:1 * Neck Cooling TubeNote:Due to the different monitor and light effect,the actual color maybe a slight different from the picture color.Please allow 1-2cm differs due to manual measurement.