Brand new, unused. One size S and one size M. No price reduction. There may be some minor dents on the surface, but there is no problem with use. [Insect Repellent Function] Unlike anything on the market before, this product not only provides a cooling effect to prevent heatstroke, but also incorporates 100% plant-derived insect repellent ingredients. It has a scent similar to menthol, making it safe for children to use. We have developed a cool neck ring with insect repellent. [Semi-Permanent Reusable] Our cool neck ring uses the latest "PCM material" and freezes naturally below 28 degrees Celsius. When the temperature exceeds 28 degrees Celsius, it absorbs heat, providing a cooling sensation and a comfortable feeling. Once completely melted, it can be cooled in cold water or a refrigerator, freezing in a short time, making it eco-friendly and semi-permanently usable.