Dane Cool Ring SK9 Perfect for preventing heatstroke in the summer! Cool and comfortable without needing electricity. --- ◆ Product Overview The "Dane Cool Ring SK9" is a neck cooling item that uses PCM (Phase Change Material). It maintains a constant temperature, providing coolness for a long time. It's easy to use: simply cool it in cold water or the freezer and then wear it around your neck! --- ◆ Features No electricity required, reusable Freezes naturally at about 28°C! Cools at a skin-friendly temperature Designed to fit the neck and not slip Great for outdoor activities, commuting, sports, and outdoor work Recommended for heatstroke prevention --- ◆ How to Use (Easy 2 Steps) 1. Cool in cold water or the freezer 2. Once frozen, wear around your neck ※ Can also be cooled with water or ice water. --- ◆ Product Specifications • Product Name: Cool Ring SK9 • Material: TPU (outer), PCM (inner) • Country of Manufacture: China • Manufacturer's Suggested Retail Price: ¥5,999 (tax included)