Pyrex is made of high quality non-porous glass ; Ideal for refrigerator & freezer storage or taking food on the go ; BPA free plastic lid ; Nest & stack for easy storage when not in use ; Non-porous glass won't absorb stains or odors ; Glass is pre-heated, oven, microwave, fridge, freezer & dishwasher safe ; Stain resistant ; Made in U.S.A Product Dimensions (in): 4.8 x 2.3 x 4.8 ;.