This KitchenAid prep bowl set is ideal for prepping and storing vegetables, herbs and other ingredients before you begin cooking. This set of four prep bowls includes 1½, 2½, 3½ and 4½ cup sizes (equivalent to 355ml, 591ml, 828ml and 1065ml). The bowls come with covers so you can prep and store ingredients ahead of time, and they nest together to save space between uses. They are dishwasher safe, for quick and easy cleanup.