Capacity 1800ml Cover PP stainless steel Caliber 45mm Thermal 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.