This set, designed specifically for food storage, will assist you in getting organized for the week, with meals portioned out and ready to go. The tight-fitting lids on these sturdy glass storage containers keep food fresh. After use, the pure Pyrex® glass can withstand microwave and dishwasher use.Pyrex Simply Store Rectangle 6-Piece Set with Matching Lids:Includes lids for 3-cup, 6-cup, and 11-cup rectangular dishes.