U'cooL 2way (small size / free size)
Cool neck heat protection! Newly available in two sizes for easy use by both adults and children!
■How to use
1、Cool the ring in an environment below 28℃. (cold water, refrigerator, etc.) 2.
2. When the contents have hardened, place the ring around your neck with the tip of the ring facing forward.
3. When the contents become liquid, cool the ring again for repeated use.
■Measurement time: approximately : 60-120 minutes