Capacity 1800mlCover PP stainless steelCaliber 45mmThermal insulation efficiency: In an environment of 20℃±5℃, the thermal insulation effect of 99℃±1℃ hot water after 6 hours is above 65℃Cooling efficiency: In an environment of 20℃±5℃, the insulation effect of cold water below 4℃±1℃ is below 8℃ after 6 hours.