This travel mug features stainless steel outer and inner walls and a spill-resistant slide lid with a rubber gasket. It's copper-lined, double-wall vacuum insulated, and sweat resistant. Keeps your drinks hot or cold for hours (can keep cold more than 18 hours and keep hot more than 8 hours). Ships assembled. Hand wash recommended. 6 3/8" H x 3 3/8" D
