Pyrex 7202-NLC Green No-Leak Vented Round Storage Lid Cover for 1 Cup Bowl Rubber Gasket Ensures an Airtight Seal, Replacement for 7202-PC Top-Mounted Vent Allows for More Efficient Heating in the Microwave Fridge, Freezer, Microwave, Dishwasher safe (Do not use in oven) 100% BPA-free plastic cover, Replacement for the 7202-PC Lid Non-porous surface does not absorb food odors, flavors or stains