COLORcode dinnerware and bakeware products are durable restaurant grade items actually used and tested in real restaurants . Vitrified china with lead free glaze is dishwasher, oven, microwave and freezer safe. Thermal shock tested, can go directly from freezer to oven. Durable so you will have them for many years and great looking so you will be proud to display them in your home. Colors and shapes were designed to be mixed and matched so get creative and have some fun.