[12 PACK GLASS CONTAINERS] BAYCO glass containers include 3 types and 12 sizes: Rectangle container: 2x370ml(1.6 cups),1x630ml(2.7 cups),1x1040ml(4.5 cups), Square container: 2x310ml(1.4 cups),1x530ml(2.3 cups),1x800ml(3.4 cups), Round container: 2x390ml(1.7 cups),1x640ml(2.7 cups),1x970ml(4.1 cups) (Please allow 0.1-0.3 inch in differs due to manual measurements, your understand will be much appreciated) Perfect for several events:gym,leftovers,picnic,portion control,work lunches,travel etc In order to package environmental protection, we put the smallest container inside the largest container, pleace check. [OVEN,MICROWAVE(Not the lids),DISHWASHER SAFE /FREEZER SAFE] These containers are oven safe below 752, you can use them for freezer storage,microwave(not the lids)and dishwasher, easy to use and easy to clean. It's safe to wash the lids in the dishwasher, but high temperatures over a long period of time can deform the silicone sealing strip at the edge of the lid, please