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: 120ml, about 4oz, suitable for espresso, coffee, latte, tea, wine tasting, desserts. Hand-blown: Thanks to the high-quality 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 120ml double wall glass cups, 18-month hassle-free warranty and our friendly customer service. All glass articles are brittle, so be careful when using or washing.Color: Type2-transparent Manufacturer: glastal Model Number: GWYY1202 Part Number: HU-XI-201 Size: Type2-120ml*2 Style: Coffee cupFeel the joy it presents and provides. The Double-walled glastal Espresso Cup Made of borosilicate glass that are light and robust at the same time. Under the glass floor is a silicone sealing part which serves to equalize the pressure between the glass walls.The small hole at the bottom of the cup which is normal for the process. Specifications Material: Borosilicate glass, BPA free Capacity: About 4oz, 120ml (We recommend that you fill with 100ml of liquid for comfortable use.) Function: drinking hot drinks will not burn your fingers, drinking cold drinks will not leave condensation water mist on the desktop. Use and Maintenance 1.Suitable for freezer and microwaves (max. 2 min. / 600 watts) 2.Please avoid contact with sharp objects when using it. 3.It is recommended not to use water over 45℃ to clean the silicone sealing parts on the bottom of the cup. Multifunctional cup Espresso cup/coffee cup/tea cup/milk cocoa cup/latte macchiato cup Also suitable for caramel macchiato, frappuccino latte, coffee latte, fruit tea, iced tea, ice cream, sundae, milkshake, hot chocolate, milk, yogurt, Fruit juice, lemonade (etc.) Gift occasions Suitable for family and friends Christmas gifts, Easter gifts, Thanksgiving gifts, Valentine's Day gifts, Mother's Day gifts, Father's Day gifts, Children's Day gifts, Valentine's Day gifts (etc.) Friendly Tips There will be minor differences between each product because of mouthblown and hand-finish craftsmanship.