This multi-functional set includes heavy-duty BPA and melamine free plastic bowls, perfect for all your food prep needs The non-skid bottoms ensure stability while mixing, tossing, melting, heating, chilling, and storing your favorite foods These bowls are microwave safe, making them convenient for quick and easy meal prep The set includes a three bowls: 2-quart with an 8.3 inch exterior diameter, 3.5-quart with a 9.6 inch exterior diameter and 5-quart with a 10.8 inch exterior diameter. See images for more details on bowl dimensions. Proudly American Made since 1946