ntroducing the "304 brand" 20 Oz. double wall vacuum insulated 304 stainless steel tumblers. Individually packaged, low 6 piece minimum, and 8 different colors to choose from make our high-quality powder coated tumblers a great option for keeping your drinks hot or cold for many hours. With a unique splash guard lid and the heavy weight of a high-quality restaurant/food grade stainless steel 304, drink ware is built to last.