An 8 pc stackable bowl set with lids includes a 1Qt, a 1.5Qt, a2.5Qt and 4Qt nesting bowls. Each bowl includes a lid with size indicator. Glass is Oven, Microwave, Frig/Freezer, Dishwasher safe. Non-porous glass won't absorb odors, flavors or stains. Clear glass allows you to watch your food as it cooks.