Disclaimer Only 3c 5c & 7c containers contain vented lidBuilt-in vent for splatter-resistant microwavingLids snap together at bases to reduce clutterBPA free microwave safe and dishwasher safeThick durable container walls for everyday useSet contains 30 assorted food containers and 30 lids for a total of 60 piecesSet includes (6) 0.5-cup, (6) 1.25-cup, (6) 2-cup, (5) 3-cup, (4) 5-cup, (2) 7-cup, and (1) 9-cup containers