Tupperware® 7-piece Microwave Multi-Use Stack Cooker Set Introducing the Tupperware TupperWave Stack Cooker. It's truly Microwave Magic. Make a complete meal for four including dessert in less than 30 minutes. Everyone deserves hot, fresh, and delicious meals, even on nights when it seems impossible. Designed with flat bottoms with rounded corners, it allows you to arrange food for more even cooking. And you can use the set in multiple configurations: stack the Casseroles or use them solo, as needed, for various cooking situations. Plus, the 3 qt. Casserole becomes a tube pan when used with the baking cone. What You Get Casserole Cover 1.75 L Casserole 3 qt. Casserole Colander Baking Cone 2 Lids User Manual Use & care guide  Good to Know Always use two hands to move filled Stack Cooker by its handles Do not use sharp or metal utensils Casseroles, Colander, Cover, Cone are all safe for use in microwave Seals not safe for use in microwave Not safe for use in oven Not safe for use on stovetop Not safe for use with grill/broil function Keep out of the reach of children Food at the outer edge of a Casserole will cook faster than the food at the center; arrange food in a circle so it cooks evenly from all sides. Make sure the pieces of food are as even as possible in shape and size; if necessary, cut or fold food items to the same thickness.