Pyrex 325-PC Round 10-inch Dia. Butterfly Orange 2.5-Quart (2.4L) Mixing Bowl Lid Covers for refrigerator, freezer, and microwave use Top-rack dishwasher safe Made in U.S.A. 100% BPA-free plastic cover is dishwasher safe (top rack only) Non-porous surface does not absorb food odors, flavors or stains