- High-quality non-porous glass: Our tumblers are made from lead-free borosilicate glass, ensuring they won't retain odors or stains, providing a clean and fresh drinking experience every time. - Set of 4 insulated tumblers: Each tumbler holds 8 oz, perfect for serving your favorite beverages—whether it's a hot cup of coffee, refreshing iced tea, or a glass of wine. - Innovative double-walled design: This heat-insulating feature keeps your drinks at the ideal temperature for longer, whether hot or cold. The double-walled construction also protects your hands from heat and prevents condensation on surfaces. - Ergonomic and handle-free: The thoughtfully designed shape fits comfortably in your hand, eliminating the need for handles and enhancing your drinking experience. - Unique flared rim: The subtle grooved rim enhances flavor transfer, allowing you to fully enjoy the taste of a variety of beverages such as tea, coffee, lattes, juices, wines, and beers. - Superior thermal resistance: Made from heat-resistant borosilicate glass, these tumblers are more durable against thermal shock than standard glass, ensuring long-lasting performance. - Condensation-free design: An air pressure release hole at the bottom prevents messy condensation, so you won't need coasters, making them ideal for use on any surface. Practical use scenarios: - Perfect for enjoying a hot latte in the morning or a chilled beer on a warm evening. - Ideal for serving guests at gatherings, providing a stylish and functional drinkware option. - Convenient for everyday use at home or in the office, enhancing your beverage experience without the worry of stains or odors.