16 oz. travel mug with screw on leakproof lid. TumblerDouble-wall vacuum insulation keeps drinks cold or hot for several hoursSweat-free designDurable, rust-proof WARNING:. Do not place in dishwasher. Hand wash only and do so before initial use. Do not use bleach or cleaners containing chlorine to clean. Do not place in microwave. Do not place in freezer. Do not burn yourself. Take caution: hot beverages will remain hot for several hours.