Bullet Points:1Long-lasting Cooling Tube: The neck coolers are made with innovative materials developed to stay cool and ready for hot summer days. This gel freezes faster than water and lasts longer.2Long Cooling Time: The cooling time of the neck coolers varies according to the external environment, you can enjoy 4-6 hours indoors and 3-5 hours outdoors, maintaining the perfect cooling temperature.3No Batteries Required: Simply place this cooling neck tube in ice water, no electrical appliances are required. Of course, the neck coolers can also be placed in the refrigerator or freezer for cooling.4Physical Cooling: The cooling neck tube adopts physical cooling so that you can use it with more confidence. Re-freeze each time the neck coolers thaws for reuse.5Versatile Use: Neck ice packs can not only be used for all outdoor sports and leisure but are also suitable for high-temperature workers, such as cooks, soldiers, field workers, gardeners, farmers, etc.Specifications:Name: ice cold circleUses: Cool and cool down to relieve dryness and heatMaterial: Environmentally friendly and healthy PPDimensions: Approx. 17 x 18 x 3 cm / 6.69 x 7.09 x 1.18 inPacking List:Neck-Cooling Tube*1Notes:Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.Due to manual measurement, there is tolerance in the product size.