Ice Neck Ring Recommended for preventing heatstroke in the summer. ◆ Doesn't Condensate, Stays Cool for a Long Time Uses a special material that solidifies at 28°C. Because its melting point differs from water, condensation is unlikely to occur, and your neck won't get wet. It can maintain a cooling sensation for approximately 90-120 minutes in an environment of 30°C. Those who are sensitive to heat can use two alternately for better effect. ◆ No Electricity Needed, Reusable Freezes naturally when placed in a place below 28°C. It can be used repeatedly in air-conditioned rooms, refrigerators, and freezers, making it economical and environmentally friendly. ◆ Ergonomic Design for Comfort Designed to fit the neck, and is a lightweight type of about 150g. It's not a burden even when used for a long time, and keeps you feeling cool comfortably. ◆ Useful in Various Situations Convenient for commuting to work or school, outdoor events, amusement parks, sports, shopping, etc. By repeating outdoor (cooling) → indoor (refreezing) → outdoor (cooling), you can automatically circulate the coolness.