Thermic Glass 10.25 oz Coffee Glasses ( Set of 2) Product details: Measures 4.25” DIA X 4.25”H Innovative, elegant and functional design Double wall borosilicate glass Hand Made -Mouth-blown, hand made products exclusive to Luigi Bormioli Thermal shock resistant Microwave and dishwasher safe Maintain the temperature of both drinks and food hot and cold Maintain unadulterated the level of acidity liquid/food contained Prevent condensation of the outer surface Made in China