Double Wall: The double wall design keeps the cup safe to touch with hot drinks and free of condensation with cold ones. And also keeps your drinks hot or cold for longer than one layer glasses under the same conditions. Hand-blown: Thanks to the high quality workmanship and experience of the glassblowers, the glass is wonderfully light, clear and smooth for easy and pleasant use. Simple and elegant look: simple and flowing line, crystal clear glass that looks good on your table. A perfect choice for coffee, tea, desserts and more. And with well-designed gift box, it's definitely a perfect gift choice in most cases. Borosilicate Glass: The use of high quality borosilicate glass, the cup will not burst even at high temperatures. It is possible to pour hot water into the ice-cold mug. Freezer compartment is suitable and hand washing is recommended. All glassware is fragile, so use and wash it carefully. What you get: 4x350ml Double-walled glasses