Keep perishable foods fresher up to 5X longer… with Freshvac™ Plus containers! These innovative food storage containers create a freshness-saving vacuum seal, without pumps or messy throw-away bags. Simply press the cover to expel air; the built-in indicator button makes it easy to confirm the seal is secure. Strong, see-through plastic containers are refrigerator, freezer and microwave safe. Set of 4 stackable square sizes: 1, 3½, 6 and 9-cup (6-cup includes removable dividers and a crisper tray). Containers nest for compact storage. Dishwasher safe.