Description
Each tumbler has a double-wall vacuum insulation for excellent temperature protection. you can enjoy your beverage cold or hot. Under normal temperature, it can keep hot for three hours or cold for nine hours.
Exceptional Craftsmanship
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Stainless steel tumbler with good insulation ability offer more value for money than ordinary vacuum cups on the market.
Each tumbler has a double-wall vacuum insulation for excellent temperature protection. you can enjoy your beverage cold or hot. Under normal temperature, it can keep hot for three hours or cold for nine hours.