Features 1. Material: The neck cooler tube is made of high-quality material, it is the best green carrier, non-toxic and harmless, so you can use it with confidence. The TPU fabric is firmly sewn and does not allow tearing or breaking. 2. Repeatable and Eco-Friendly: Our ergonomic design and eco-friendly TPU material are superior to traditional ice cold neck straps, experience high quality and comfort. It also fits all neck sizes and is reusable, making it a sustainable option. 3. Easy to UseJust put it in ice water, freezer, refrigerator or other places where the temperature is below 18C. Freeze for 10-20 minutes and enjoy 40-120 minutes of ice cold. 4. Long-lasting Comfort: Our basic version lasts about 40-60 minutes, enjoy reliable cooling duration. Our neck cooler provides refreshing, enjoyable cooling without the need for ice, batteries, chargers or fans. 5. Multipurpose: The circumference of the neck cooling cover is about 34cm, which is suitable for most people's neck size. Scientific human body design, wearing it will not increase the burden on the neck. It can be used in various scenes such as those who exercise regularly, those who work outdoors, and those who commute to get off work or school. Specification Material: PCM Color: Blue, Pink Size: 18 18 3 cm Weight: 203 g Package Include: 1x Neck Cooling Ring