· Lids are made of durable BPA-free plastic· Genuine Pyrex Food Storage Replacement Lids· Please Check the bottom of your glassware for the item number and match that to the lid item number to ensure proper fit· Only fits Pyrex 222 models, please check the bottom of your container for model number "222" to ensure proper fit.· Dishwasher safe, Microwave safe, and Freezer safe; Made in the USA