Airtight Lids: Snap tight to keep food fresh and prevent leaks Space Saving: Modular design that enables perfect stacking for compact storage Durability: Thick-walled construction for everyday use Microwave Safe: Built-in vents allow steam to escape without removing the lid Safe Materials: Freezer-safe, top rack dishwasher-safe, BPA-free containers Pantry Organizer: Ideal for pastas, baking ingredients, and other pantry staples All Included: Set includes four 4.7-cup food storage containers with lids, total 8 pieces