Spread the love with Moomin by Muurla Heart collection. Nostalgic Heart illustration brings a lovely feel to your everyday moments. Muurla's enamelware consists of a carbon steel core that carries a double coating of enamel. Moomin enamel mug in size of 12.5oz. Being durable and light, enamel products are perfect for both indoor and outdoor use. Dishwasher safe. Do not use in microwave oven.