Brand new, unused L size x 2 Price not negotiable 【Insect Repellent Function】 Unlike anything on the market before, this product not only provides a cooling sensation to combat 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 this insect repellent cool neck ring. 【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 quickly frozen by cooling in cold water or a refrigerator, making it eco-friendly and semi-permanently reusable.