The UGASUN Portable Thermal Cup has a two-layer thermal insulation design, so it keeps the original temperature of the drink for a long time. But even if your tea or coffee gets cold, you can always warm it up with the push of just one button. The mug is made of high-quality food-grade materials that do not react chemically with cold or hot drinks, so it is completely safe to use. High-quality silicone ensures 100% tightness of the device, which reduces the risk of accidental spillage of liquid to a minimum.
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