Neck Cool Ring M Size Crayon Shin-chan [Neck Cool Ring] that cools your neck Perfect for preventing heatstroke in the summer Freezes naturally below 28°C Reusable Maintains a comfortable temperature Doesn't condense, so your clothes won't get wet Material: TPU / Inner material: PCM Color: Yellow Size: M (Inner diameter approx. Φ103mm) Brand new, unopened. If there are any initial defects, please contact the manufacturer. Will be shipped in an envelope with only waterproof packaging. Thank you for your understanding. #IceRing