"What Is It?" Reusable White Lunch Plate with Ant Design, 7.5 Inch Melamine, Set of 4 Includes a set of 4 plates 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: 7.5 inch diameter Available in other sizes (and without ants). Matching cups available.