Not for use in oven or microwave Acrylic round katori - virtually unbreakable. Easy to clean with soap and wet cloth/sponge. Don't use scotch brite or other rough cleaning harsh material. High-style MILKY WHITE, acrylic dinnerware steps up casual dining with a glossy finish. Their handmade simplicity will give alfresco summer lunches a touch of rustic elegance. BPA-free and completely food safe, the acrylic used in our product does not contain any fillers or harmful additives.