The Haus by Kalorik Double Wall 4 oz.4-piece glassware set is the perfect complement to your kitchen. Functional and fun the lightweight double wall design makes liquids inside appear floating for a sophisticated and unique appearance. The double wall design creates insulation to keep liquids at the perfect temperature whether hot or cold. The exterior wall stays cool to the touch for easy handling and prevents condensation- no need for coasters! Designed with durability in mind these glasses can withstand shock and extreme temperatures without shattering. Enjoy the Haus Double Wall Glassware collection for hot and cold beverages alike. Microwave and dishwasher safe.