The Oiva mug with Kurre pattern is made of white stoneware that is dishwasher, oven, microwave and freezer proof. Oiva products are designed by Sami Ruotsalainen. Unikko, symbolizing creativity, was born in a time when hardly any floral designs were included in Marimekko’s collections. Maija Isola, however, was fascinated by the theme of flowers and decided to create an entire range of novel floral prints. Please remove the sticker from the bottom of the product before use. The sticker contains a small amount of metal. Materials: 100% White Stoneware Care: Food, dishwasher, freezer and microwave safe. Capacity: 13.5oz