Brand new, unused! Opened for photography purposes only! Color: Pink This neck cooler is perfect for heatstroke prevention and cooling down in the hot season. This innovative item freezes naturally below 28°C and is economical because it can be used repeatedly. ✨ Product Features and Benefits 1. Freezes naturally at 28°C: It freezes automatically if the room temperature or water is below 28°C. It can be used without putting it in the freezer, making it convenient for use outdoors or in the office. 2. Comfortable coolness: Uses **PCM (Phase Change Material)** developed for astronauts. The gentle, long-lasting coolness is comfortable without being too cold. 3. Less dripping: It is less likely to condense, so your neck won't get wet, and you can use it comfortably. 4. No electricity or water needed: It's an eco-friendly product that requires no electricity or water and can be used repeatedly. 5. Cute pink color: A popular pink color that easily blends with fashion.