Corningware F-23-VPC 23oz French White Oval Pop-Ins Vented Lid This Lid measues approximately 8-7/8in Long and 5-7/8in Wide Top-Mounted Removable Vent Allows for More Efficient Heating in the Microwave Non-porous surface does not absorb food odors, flavors or stains; BPA-free Plastic Refrigerator, Freezer and Microwave (Do not use in oven); Dishwasher safe (Top-Rack ONLY) Made in the U.S.A