Storage bowl set comes with 3 different sizes, from small to large, which enable multiple ways of use. They are perfect for food preparation, baking, mixing, beating, tossing, or serving fruit and salad. Their lid always stay on the bowls to keep food fresh and dry, best to store snacks and fruit. Please Do Not put bowls in the oven. Please clean and dry the bowls after using for their durability and your health. Please wash the bowl set with warm soapy water before first using to wash off any residue left from the manufacturing process.