This Gelert Thermal Mug is ideal for the outdoors, traveling, commuting, or in-office use, keeping your drinks hot or cold with a 350ml capacity and a screw-top lid to secure the contents. . . Screw top lid. Stainless steel. Double-wall design for optimum insulation. Polished internal. Capacity: 350ml. Imported. 193205084286 32416300015 787186