Maebata Luxe Pair Metal Thermo Tumbler Mat A pair set of stainless steel tumblers. Another set is also available. It uses a vacuum-insulated double-wall structure, which makes it condensation-resistant and keeps the contents at a constant temperature. Suitable for both cold and hot beverages. Can be used in various situations such as the office, home, and outdoors. [Size] Diameter 7.5 x Height 13cm. [Capacity] 340ml. [Material] Stainless steel. [Colors] Black, Silver. New and unused, but as shown in the third photo, there is a slight mark from tape removal.