Pyrex 7210-PC Rectangle Dark Blue 3 Cup Storage Lid for Glass Dish (2, Dark Blue). Package Quantity:2 Â |Â Color:Blue. PYREX Blue 3-cup Rectangular Plastic Cover for Glass Bowls Approximately: 10 inch x 8 inch x 1/2 inch Pyrex covers / lids make cooking, serving and storing easy and convenient. These lids are made of a non-porous surface, which does not absorb food odors, flavors, or stains. Lids can be used in the refrigerator, freezer, or microwave and can be cleaned on the top rack of the dishwasher. These covers / lids are made in the U.S.A.