With its creative design, BiggTea Double Walled Glass will add elegance to your kitchen. Thanks to the double insulated walls of the glass, it is perfect to preserve the heat of all your hot drinks such as coffee, tea, milk and espresso. 50 ml capacity is ideal for hot drinks. Resistant up to 150℃. Do not expose to direct high temperature. Not suitable for use in areas such as microwave ovens. Made of completely lead-free, non-toxic ultra-clear borosilicate glass, tasteless and odorless.