Drink your best cup of coffee or tea from the Rosenthal Mug Joyn White 420 ml. The mug is made of high-quality porcelain and features a distinctive pattern. With a capacity of 420 ml, this mug is suitable for any kind of coffee or tea you can think of. After using the mug it goes straight into the dishwasher or you warm up your drink in the microwave, because it's allowed in there too. That's easy!