"Cosmos" Series Individually Wheel Thrown Stoneware Mug. Food safe, Safe for use in the dishwasher, oven and microwave. The bulbous 12 ounce mug with narrowed lip keeps beverage warm, as does the clay, with a handle big enough to keep your hand away from the part holding in the heat. On the roof of the Studio is an Observatory, and this glaze is a hint of a distant universe as seen through the telescope! Please are also sold separately.