The Oiva plate is made of dishwasher-, oven-, microwave- and freezer-safe white stoneware. Oiva products are designed by Sami Ruotsalainen. Please remove the sticker from the bottom of the product before use. The sticker contains a small amount of metal. Unikko, a symbol of creativity, was created at a time when Marimekko's collections hardly contained any floral designs. Maija Isola, however, was fascinated by flowers and decided to create a whole new series of floral prints.