Made from double-wall insulated glass, this whiskey glass cup keeps beer colder longer and enhances its taste. With a unique upside-down design, it showcases beverages beautifully suspended-in-air. Perfect for beer lovers, it makes a classy gift for birthdays and Father's Day. Features 1. Safe Material: Made from double-wall insulated glass, these craft beer glasses are refrigerator and freezer safe so you can chill them beforehand. The glass is designed to keep your beer cold 2. Keeps Beer Cold: Designed with double-walled insulation to keep beer colder, longer. Beer tastes better than in regular glass, and the unique shape makes drinks look beautifully suspended-in-air. Leave it in the freezer to have a chilled, drinking-ready glass on hand. 3. Beautiful Classy Design: This beer glass holds a generous of your favorite beer which offers excellent clarity for showcasing beverages. Dry and right fit your hand thanks for insulated layer. 4. Unique Gift: The perfect present for any beer lover, this insulated beer glasses will make a thoughtful and well-used gift. It's great for birthdays, housewarmings and Father's Day. 5. Enhance Taste: With its wide mouth design and insulated, double-wall glass, this beer mug will enhance the taste of your favorite beer and show off your beautiful pour. Specification Material: Glass Color: Transparent Size: 16 x 7 cm, 18 x 8 cm, 20 x 9 cm Weight: 150 g, 200 g, 230 g Capacity: 250 ml, 350 ml, 450 ml Package Include: 1× Beer Glass