These large Le Creuset mugs make coffee, tea, and hot cocoa much more enjoyable! The large Bistro Mugs are made of dense high-fired stoneware that retains heat and is extremely durable. Safe for the microwave, freezer, oven, broiler, and dishwasher. Café Collection Bistro Mugs have a 10 year warranty. 14 oz mugs. Set of Two.