【Refreshing and No Condensation】 This ICE neck ring uses TPU material and a new cooling material (PCM) developed by NASA, and is made of the amazing "PCM material" that automatically freezes when the temperature is below 28°C. It can freeze even faster when placed in an air conditioner, refrigerator, cold water, or freezer. Also, it doesn't cause condensation, so you won't get your clothes wet while using it, keeping you refreshed. Inner diameter 12cm, thickness about 2cm, inner circumference about 38cm. Neck circumference guide 39cm. Furthermore, it is lightweight and doesn't put a burden on your neck. * Immediate purchase welcome, silent purchase at midnight OK ◎ * One-of-a-kind, first-come, first-served * Bulk purchase welcome, feel free to comment * Free shipping! ・Please understand and purchase with home storage and simple packaging for shipping (⁎ᵕᴗᵕ⁎) ・Please check the actual photos for the condition of the product ♪ ※To sell as cheaply as possible, we may ship the product out of its box due to shipping costs. Cool Ring Ice Neck Ring Naturally freezes at 28°C Neck Cooler Neck Cooling Neck Cooling Tube Neck Circumference 40cm 2 hours Cool Ice Neck Band Cooling Ring Cooling Tube Heatstroke Prevention When Wearing a Mask Commuting to Work School Sports Watching Outdoor Running Fireworks Festival Festival Unisex Pet NASA National Aeronautics and Space Administration Developed PCM Reusable (White) #Kana's product list is here ✨️☜ ☆44-19☆