Travel Tumbler, 11.8 fl oz (350 ml), Vacuum Double Layer Structure, Heat and Cold Retention, for Water, Coffee, & Tea, White

1.Heat retention effect is a place with boiling water in the product at a room temperature of 6 degrees F (20 degrees C ± 2 degrees C), and when the water temperature reaches 95 degrees C ± 1 degrees C, it indicates the temperature of the hot water measured after 6 hours.<div></div>

2.Cold retention effect is a product with cold water at a room temperature of 6.9 °F (20 °C) ± 2 °C), when the water temperature reaches 4 ° F ± 1 ° C to indicate the temperature of water measured after 6 hours.<div></div>