Mug. Volume: 440 ml. Material: dolomite ceramic. Not suitable for use in a microwave oven. It is recommended to wash by hand using mild detergents. Do not use abrasive cleaning agents or hard sponges for maintenance. Can not be washed in the dishwasher. When in contact with hot products or liquids, a "craquelure" effect may form on the surface of the product - the product may be covered with microcracks, the appearance of which does not affect the consumer characteristics of the product.