- Premium Hygiene: Made from high-quality, non-porous lead borosilicate glass, these tumblers are designed to resist odors and stains, ensuring a clean and pure drinking experience. Each tumbler holds 8 oz. - Innovative Insulation: The double-walled design effectively keeps drinks hot or cold for extended periods. The insulated structure protects your hands and furniture from heat or cold transfer, providing comfortable handling without the need for handles. - Flared Rim Design: The subtle fluted rim enhances your beverage tasting experience by allowing flavors to reach all your taste buds. Perfect for a variety of drinks, including tea, coffee, lattes, juices, wines, and beers. - Durable & Functional: Constructed from heat-resistant borosilicate glass, these tumblers withstand thermal shock better than standard glass. An integrated air pressure release hole at the bottom eliminates condensation, removing the need for coasters. Practical Use Scenarios: 1. Enjoy your morning coffee or tea at home without worrying about burns or stains on your table. 2. Serve chilled beverages at outdoor gatherings or picnics, with a guarantee they will remain refreshingly cool. 3. Use for wine or craft beer tasting, allowing you to savor subtle notes with comfort and style. This set of 4 insulated tumblers combines functionality, style, and durability, making it an essential addition to your drinkware collection.