Durable stoneware construction provides even heating. Stoneware resists stains and does not absorb food odors or flavors. Dishes nest inside one another for space saving storage. Plastic lids are BPA-free and ideal for storing leftovers. Plastic lids are top-rack dishwasher safe and microwave safe. Dishes are freezer microwave oven and dishwasher safe. Includes: (2) 4oz Ramekins. 16oz Round container with plastic lid. 1.5qt Round container with glass and plastic lids. 2.6qt Round container with glass and plastic lids.