Pyrex Storage 4-Cup Round Dish with Dark Blue Plastic Cover, Clear (8-Pack, Blue) Case of 8 Containers Each with Plastic Lids. Pyrex glass is safe in the oven, microwave, refrigerator, and freezer. Classic, Functional, and Durable Made in USA, Dishwasher Safe Glass is non-porous, it won't absorb food odors, food flavors or food stains