Thank you for viewing! This is a cool neck ring that cools your neck to help you stay cool in the heat. It uses PCM material that freezes naturally at 24°C (75°F) or below. 【Product Features】 ・Freezes naturally at 24°C (75°F) or below ・Gently cools the neck ・Comfortable cooling sensation without being too cold ・Less condensation, so clothes don't get wet easily ・Reusable ・No power or batteries required 【How to Use】 ・Cool in the refrigerator, freezer, or tap water ・After freezing, wear it around your neck 【Product Condition】 ・New, unused ・Outlet item, so the outer box may have scratches or warping, but the main body is unused. 【Recommended Uses】 Commuting to work/school / Outdoor work / Walking / Outdoor activities / Leisure / Heatstroke prevention Instant purchase is OK. Feel free to comment if you have any questions. #CoolNeckRing #NeckCooler #PCM #HeatstrokePrevention #SummerHeat対策 #NeckCooling #New #Outlet