These Anchor Hocking TrueSeal handy BPA-free glass containers are stackable and perfect for storing leftovers, salads, marinating meats and reheating food right in the dish. Tempered glass for superior durability is freezer, microwave, oven and dishwasher safe. Comes with patent-pending plastic lids that clean up quick in the dishwasher. Lids are not oven safe. Made in the USA.