These Pyrex 7210-PC dark blue rectangular storage lids are a welcome addition to any Pyrex kitchen. These lids are made from BPA-free, non-porous plastic that does not allow them to retain food stains or odors. Safe for use in the microwave, freezer, and refrigerator and designed to stack for optimal use of available space, these make great replacements for lost or damaged lids. Reference the product number on the bottom of your Pyrex dish to ensure you order the correct lids. Pyrex is made in the USA