The Breville Espresso Duo features two elegant 100mL (3oz) double-wall glasses, designed by the renowned BODUM® Design Group. Perfect for serving espresso, doppio, or macchiato while keeping your hands cool. The double-wall heat-resistant borosilicate glass construction keeps hot drinks hot without burning your fingers, and cold drinks cold for longer. Features a patented Bodum® air silicone valve that equalizes air pressure, reducing condensation. The borosilicate glass withstands extreme temperatures from -30°C to 530°C. Dishwasher, microwave, freezer, and oven safe. Set includes 2 glasses.