About the TITLIS Double Wall Drinking Glasses Set Special occasions deserve special glasses – and the TITLIS double-wall drinking glasses will definitely inspire your guests. These noble cups stand out due to their unique shape and the innovative double-walled construction, which creates an optical illusion, so that your drink looks as if it were floating gracefully in the glass. Made of heat-resistant borosilicate glass, the TITLIS double-walled drinking glasses have thermal insulation that keeps hot and cold drinks at their optimum temperature for longer while regulating the outside temperature of the glass. Best of all, these shapely glasses enhance the presentation of your drinks so that they look as good as they taste. From coffee, cocoa and tea to cold brew, cocktails and chilled desserts, these double-walled drinking glasses bring a touch of luxury to your home. Main features and benefits Set of double-walled drinking glasses. Innovative double-walled design that keeps hot drinks hot and cold drinks cold. Also perfect for serving soup or cold desserts. Made of hand-blown, heat-resistant borosilicate glass. Hydrophobic silicone valve that balances the air pressure between the two glass walls. The unique shape allows the jars to be stacked for convenient storage. Suitable for dishwasher, microwave and oven (up to 176 ºC). Available in different sizes. Use and care Before first use, rinse the glasses in warm soapy water and dry them thoroughly. For all other uses, rinse and dry the cups by hand or place them in the dishwasher. The TITLIS double-walled glasses can be safely used in the freezer, oven and microwave. Colour: Transparent Material: borosilicate glass Dimensions: LxWxH: 8 x 0.08 x 10 cm