A neck cooler that gently cools and freezes naturally at 28°C or less! Great for preventing heatstroke and outdoor activities. Convenient and eco-friendly, it can be used repeatedly.

• Size: L size / Neck circumference approx. 15.4 inches (39 cm) (Adult women and men)
• Neck guide: Female approx. 12.3 inches (31.2 cm), Men's approx. 14.2 inches (35.8 cm)
• Can be used repeatedly, and is resistant to condensation, providing a cooling sensation that prevents heat from getting cold
• Naturally freeze at 76°F (28°C) or below and repeatedly hardens and melts the contents between 66°F (28°C). Just place it in cold water to cool it down. If you want to freeze quickly, we recommend the refrigerator or freezer
• Keep the contents from being hardened for 90 - 120 minutes and approximately 29 degrees Celsius