Marimekko Jokeri Red Birch Tray 12.5 "DMade of laminated birch plywood, this lightweight tray features the Jokeri pattern. The reverse side of the tray is of a natural plywood colour. The tray is food safe. To clean the tray, we recommend wiping with a damp cloth or hand washing. Do not soak. The non figurative Jokeri design dates back to the time when influences from contemporary youth culture were perhaps most strongly evident in Annika Rimalas rhythmic patterns.