Green Moomintroll mug by Arabia features illustrations of Moomintroll from a comic called Moomin and the Martians (1957). 300ML Made of Porcelain Dishwasher and microwave safe Can be used in ovens and freezers Moomin by Arabia mugs, bowls and plates are dishwasher safe except dishes decorated with gold or platinum. Use a rinsing agent in the dishwasher to improve the results, to maintain the color and glaze on the dishes. Very dirty dishes can be soaked in hot water with detergent. Rinse dishes before placing in dishwasher.