KINTO 20949 Travel Tumbler, 16.9 fl oz (500 ml), Sand Beige, Double Wall Vacuum Construction, Heat and Cold Retention

Product Name: Stainless steel portable thermos flask Material: Stainless steel, polypropylene, silicone rubber, BPA free / Made in China / Heat Retention: Over 148°F (69°C) (6 hours) Cold Retention: Less than 15.2°F (7°C) (6 hours) 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 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 Before filling your beverages, please add a small amount of boiling water (cold water) and preheat for about 1-2 minutes (precooling) to improve the thermal effect of cooling