Storage set includes three 2-cup round, two 7-cup round, two 4-cup round, and two 1-cup round containers with nine plastic lidsMade of clear, nonporous glass that won't warp, stain, or absorb odorsDesigned for easy nesting and stacking; seal-tight lids ideal for food storage or taking foods on the goBowls safe for use in microwave, refrigerator, and freezer; oven safe to any baking temperature, but not broiler safe