About This Double Wall: keeps the cup safe to touch with hot drinks and free of condensation with cold ones. The design is practical and beautiful, with an optical suspension effect Borosilicate Glass: is heat-resistant and anti-condensing, can withstand temperature changes (-30???~150???). Freezer compartment is suitable and hand washing is recommended Capacity: 120 ml, about 4 oz (full capacity), we recommend that you fill the cup comfortably with 90 ml (3 oz) of liquid. Suitable for espresso, coffee, latte, tea, wine tasting, desserts Hand-blown: Thanks to the workmanship and experience of the glassblowers, the glass is wonderfully light, clear and smooth. It is an ideal gift for family and friends What You Get: 2?? glastal 4 Oz (full capacity) double wall glass cups, and friendly product support(within 18 months). All glass articles are brittle, so be careful when using or washing Overview Brand : glastal Material : Borosilicate Glass Color : Type1-4oz*2 Capacity : 113.4 Grams Special Feature : Double Wall, Heat Resistant, Transparent