Corelle Impressions dinnerware collection is made by laminating multiple layers of glass together to create a lightweight chip-resistant glass dish. The result is an incredibly durable dinnerware set that is built to stand the test of time. Corelle is microwave, oven, and dishwasher safe for carefree maintenance. Service for 4 includes: 10-1/4" dinner plates, 7-1/4" salad plates, 18 oz. soup/cereal bowls, and 10-1/2 oz. stoneware mugs. 3 year limited break and chip warranty.