Each of these glass bowls comes with an airtight lid for fresh food, and nests into the other with the lids on so nothing gets lost in your cupboard! Temperatures: Made from thick glass this Bowl Set is freezer safe, microwave safe, dishwasher safe (not the lids). Fridge safe WITH lids. NOT Oven Safe. The best part is each kitchen bowl is extra thick and robust so you can use them year after year for hundreds of things!Details:Available in assorted colors of lidsIncludes assorted sizesIncludes 4 bowls and 4 lidsDishwasher safeLead-free glassSizing Information:8" x 4.25"7.5" x 4"6.25" x 3"5.5" x 2.5"