These plates are made from durable tempered opal glass and, in internal tests, were proven to be 3x more impact resistant and 4x more chip resistant than stoneware. A smooth, high-fired glaze finish means these are non-porous making for super easy cleanup and are dishwasher, microwave, and freezer safe for convenient everyday use. The dishes feature an exquisite blue geometric pattern on the edges giving them a subtle yet classy look and feel.