About the pavina double wall glasses treat your table to a fresh new look with our eye-catching set of pavina double wall glasses. These stylish tumblers make every drink look like a work of art, as the innovative double wall design has a floating effect on your favourite beverage. But these award-winning tumblers arent just a pretty face, theyre really clever too! individually mouth-blown from heat-resistant borosilicate glass, our double wall glasses have a thermal quality that keeps hot drinks hot and cold drinks cold. Theres a silicone vent at the base of the glass that equalises the air pressure between the two glass layers when hot or cold liquids are added. That means no more burnt fingers from picking up a hot cup of coffee, and no messy condensation so no need for coasters. Lightweight and comfortable to hold, these trusty tumblers offer countless serving possibilities, from coffee, tea and hot chocolate to cold brew, soda and cocktails. So you only need to buy one type of glass for your home! main features benefits innovative double wall construction that keeps hot drinks hot and cold drinks cold. Also perfect for serving soup or cold desserts. Made of mouth-blown, heat-resistant borosilicate glass. Hydrophobic silicone vent that equalises the air pressure between the two layers of glass. Dishwasher, microwave and oven safe up to 356f180c. Use care wash in warm, soapy water before first use and dry thoroughly. For all subsequent uses, wash and dry by hand or pop in the dishwasher. Pavina double wall glasses are safe to use in the freezer, oven and microwave.