Brand new, unused L size x 2 No price reduction There are some minor dents on the surface, but there is no problem with use! [Semi-permanent reusable] Our cool neck ring uses the latest "PCM material" and freezes when the temperature drops below 28 degrees Celsius. When the temperature exceeds 28 degrees Celsius, it absorbs heat and slowly melts while providing a cooling sensation. Once melted, it can be cooled in cold water or a refrigerator, and it freezes in a short time, making it eco-friendly and semi-permanently usable. [Great for cooling in various summer situations] Great for camping, walking, jogging, mountain climbing, fishing, indoors, fireworks displays, watching sports, offices, and many other situations.