20 Ounce tumbler thermos cup with lid: The main body is made of food-grade lid AS material, the inside of the cup is food-grade 304 stainless steel, and the outside is 201 stainless steel. No rust, no peculiar smell, keep warm for 8 hours and keep cold for 9 hours.
Suitable for storing various beverages, such as wine, beer, water, juice, cocktails, coffee and champagne; suitable for use in homes, shopping malls, parks, offices, swimming pools, hot tubs, beaches, picnics or any other outdoor places.