Our union jack mug pays homage to all things British. Enjoy a cup of English tea with our Union Jack 1/2 Pint Mug, made with the finest materials and handcrafted to perfection. Dishwasher safe. Lower temperature wash and liquid detergent recommended to maintain appearance. Not recommended for use in the microwave. Earthenware pottery can sometimes get hot in the microwave, so we recommend you don’t put Emma Bridgewater pottery in the microwave. Not oven safe. Our pottery is not oven safe unless marked as cookware. 9.3cm h X 12.1cm w 8.2cm diameter, 300ml capacity.