: The Cooling Neck Wraps are suitable for those who love outdoor activities, such as fishing, hiking, jogging, camping, sports, etc., those who work in a hot environment, farm, fishery, forestry, those who wear suits, and those who are attending sports events, musical festivals, etc. Features: 1. Keeps freezing below 18 degrees and melts to absorb neck heat when above 22 degrees. 2. No batteries are required, just put them in the ice water, freezer, and refrigerator for cooling. 3. Not easy to condense on the surfaces. 4. Long-lasting time, about 1 hour indoors, and about 30 minutes to 1 hour for outdoors. Specifications: Product Name: Neck Ice Wrap Materials: PVC PCM coolant Size: about 18x17CM 7.09x6.69inch Packing List: 1 Cooling Neck Wraps Notes: 1. Due to the lighting effects and shooting angles, there is a color difference in the product, please understand. 2. Due to manual measurement, there is a tolerance in the product size.?Various Applicable Scenes: Extensively suitable to work and outdoors for cooling, and is applicable for the cookers, fishermen, hikers, cyclists, athletes, teachers, doctors, etc. ?Pleasant Cooling Time: The Cooling Neck will provide you with an enjoyable cooling time by maintaining an optimal cooling temperature without wetting your clothes or hair. ?Non-battery Operated: Worry about the battery safety? The Neck Wrap for Cooling uses a non-battery design, making it easy to freeze in the ice water or in the refrigerator, AC, etc. ?Handy to Use: The Neck has a faster and more durable cooling effect than water thanks to the new high-tech phase change materials, a practical tool to keep you cool in hot weather. ?Reliable and Comfortable: The Cooling Neck Wraps will freeze below 18 degrees and will slowly melt once above 22 degrees to absorb neck heat with direct skin contact.