Thank you for viewing! ❤️ Price negotiation → Highly welcome ⭐️ First come, first served ⭐️ Initial defect warranty included [Inspected by the Ministry of Health, Labour and Welfare, Japan Cultural Goods 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 over 15,000 times. Durability and safety tested by the Japan Cultural Goods Safety Inspection Institute in Japan (Inspection date: May 18, 2023) [Natural freezing at 28 degrees Celsius 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 countermeasures in summer. Our product is different from the common 18-degree freezing type on the market, and if the room temperature is 28 degrees Celsius or lower after use, it will freeze naturally just by leaving it, and can be used repeatedly and easily even in an environment 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 the usual maximum of 8 hours to a maximum of 12 hours. [Product Specifications] S size: 110g ± 10g, Length: approx. 110mm, Width: approx. 100mm, Neck circumference approx. 31cm Vitamin Lemon ❤️ We have many other wonderful products on sale too♡ ↓ Further discounts available for bulk purchases (^o^)↓ #Ram's Shop Management number: -188$$580