Pyrex Storage Plus 4 Cup Black Penguins Dish w/ White Lid Storage Plus 4 Cup Black Penguins Dish with White Lid; Pyrex glass is dishwasher, refrigerator, microwave & pre-heated oven safe; Non-porous surface does not absorb food odors, flavors, or stains; Plastic lids are top-rack dishwasher safe, refrigerator & microwave safe, as well as BPA free; & Proudly made in the USA.