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This neck ring features a double-layered structure with a PCM (Plastic Crystal Material) inner layer set to -11℃ and a conventional 28℃ PCM outer layer covering the inner layer.
Freezing it in the freezer freezes the inner ring, increasing the duration of the coolness! After freezing, it maintains a coolness of 28℃ or below for 7 hours in a 36℃ environment
Dimensions: 15.5 x 18 x 2.8 cm (thickness), Inner circumference: 36 cm
*Photo for reference only.
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
US$40
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