The set includes five bowls, in a variety of sizes ranging from 6 inches in diameter to 11.75 inches. That means you can easily find the perfect size for any situation, from mixing and meal prep in the kitchen to snacks and serving food at the table. Made of durable melamine, the bowls are sturdy enough for everyday use, bringing bold color to your daily routine. They nest together for easy storage, and the material is also completely BPA free, as well as dishwasher safe and easy to clean. Do not microwave.