Skater Reusable Cooling Ring Neck for Women and Sanrio Cooler, Medium, Children, "I'm Doraemon" Design, NCL1-A

Size: M / Neck circumference approx. 33cm (for children and women) Neck size: Women's approx. 31.2cm, Men's approx. 35.8cm Reusable, condensation-resistant cooling ring for heat protection It freezes naturally below 28°C, and the contents repeatedly freeze and melt above 28°C. Can be cooled by simply placing in cold water If you want to freeze food quickly, we recommend using the refrigerator or freezer. Maintains a temperature of approximately 29°C for 90-120 minutes when used after the contents have solidified