⭐️ New, unused ♪ Opened for photography. ⭐️ Free shipping, anonymous delivery, so you can rest assured ◎ ⭐️ Comments are welcome, and immediate purchase is also welcome. ⭐️ Only one in stock! First come, first served! Also, many popular products are on sale ✨ #Mami♡'s other products are here ◎ Product Name [PCM volume increased by 71% / Corporate purchase possible] Cold Ring Neck Cooler 28℃ Natural Freezing No Condensation Cool Ring Neck Cooler Ice Cool Ring Cool Neck Heat Stroke Prevention Neck Cooling Cold Sensation Long Lasting Neck Cooler Heatstroke Prevention Cold Sensation Outdoor Unisex Adult Children (S size - child panda) ◎ Product Contents [Naturally freezes at 28 degrees indoors, no refrigerator needed] Our cool ring uses the latest advanced PCM material developed by NASA. The characteristics of PCM material are that it solidifies quickly and melts slowly, making it ideal for heatstroke and heatstroke prevention in the summer. Unlike the common 18-degree freezing type on the market, our product naturally freezes just by leaving it in a room temperature of 28 degrees or less after use, and can be used repeatedly and easily even without a refrigerator. [Can be used continuously for up to 12 hours] Compared to the normal type of cool ring, the PCM content has been increased by 70%, and as a result, the cooling duration has been increased from a maximum of 8 hours to a maximum of 12 hours when used indoors. [Inspected by the Ministry of Health, Labour and Welfare, Japan Cultural Supplies Safety Inspection Institute / Leakage Prevention] Manufactured in an ISO9001 certified factory, as a result of improving the manufacturing process and material quality, leakage due to damage during use can be prevented, and it can be used repeatedly more than 15,000 times. Durability and safety tested by the Japan Cultural Supplies Safety Inspection Institute in Japan (inspection date May 18, 2023) [Product Specifications] ① L size (for adults): 130g ± 10g, length: approx. 140mm, width: approx. 120mm, neck circumference approx. 39cm ② M size (for women / children): 120g ± 10g, length: approx. 120mm, width: approx. 110mm, inner circumference approx. 36cm ② S size (for kids only): 110g ± 10g, length: approx. 110mm, width: approx. 100mm, neck circumference approx. 31cm 220256