Four-clip locking system creates an airtight, leak-proof seal to keep contents fresh and prevent leaksExtremely durable; Lock & Lock containers are microwave-safe, freezer-safe, and dishwasher-safeStackable design saves space in the fridge, freezer, cupboards, and drawersNon-toxic and BPA-free material for safe food storageLeftovers and meal prep: After cooking, portion into containers, seal tightly, and store in the fridge or freezer; microwave reheating is convenient and easyLunches and on-the-go meals: Pack portions for work or school; stackable design helps keep your bag or lunchbox organizedPantry organization: Store nuts, cereals, snacks, or other dry goods; use the stackable design to maximize cabinet and shelf space