Description: Put the water below 17 degrees into the color changing tumblers, the color of the cups will change immediately. This product has a large capaity volume, about 710ml. Also very portable and lightweight, you can carry it in your bag easily.
Description: Put the water below 17 degrees into the color changing tumblers, the color of the cups will change immediately. This product has a large capaity volume, about 710ml. Also very portable and lightweight, you can carry it in your bag easily.
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