A cooling ring that can be worn around the neck and used after chilling in a refrigerator or freezer. The front and back are different colors, gray and white. There are 4 of this item. We also have other colors available. - Brand: MKD ZAKKA - Model Name: COOL RING - Size: M - Temperature: 24℃ - How to use: Chill in refrigerator, freezer, water, or cold water - Features: Cooling ring worn around the neck Thank you for looking.