Quality material: The espresso shot glass is made of quality high boron glass, sturdy and durable, has a very low coefficient of thermal expansion at the same time, this will reduce the influence by temperature sudden rise or drop, thus will not burst, because the temperature rise abruptly in the refrigerator and pour into boiling water will not break, ensure you use safety.
SAFETY IN USE: Made of heat-resistant, clear & thick borosilicate glass. Stable and durable enough to put in the Microwave, fridge, freezer & dishwasher safe. Wide double spouts design of the shot glass cup is easy to clean.
Wide use: suitable for homes, shops, offices, hotels, business trips, tourism and other occasions, bringing you a lot of convenience.