"What Is It?" Larger Size 11-inch Reusable White Dinner Plate with Ant Design, Melamine, Set of 4 Includes a set of 4 plates with ant design Made of Melamine which is washable and reusable. Made to look like traditional white paper plates but they are not paper Dishwasher safe. Not microwaveable Measures: 11-inch diameter Available in other sizes.