Please read the description carefully before purchasing. I received this new from my mother-in-law several years ago, but I forgot to use it even though I knew it was versatile, so I'm putting it up for sale. Comes with a recipe! The Tupperware Wave 2000 is a product specifically designed for microwave cooking, and by using the steamer and lid separately, you can steam and cook multiple dishes at once. For example, you can use the steamer to make steamed chicken, use the lid as a colander to cook small amounts of ingredients, or cook two dishes at the same time using the main body and lid. The key is to use it according to the dish. Tips for Use Using the Steamer Steaming: By placing the steamer, you can prevent ingredients from becoming soggy with moisture and achieve a plump and juicy finish. Using Cooking Liquids and Umami: For dishes like simmered fish, you can remove the steamer, or use the steamer if you want the umami of the ingredients to fall to the bottom, depending on the dish. Drop Lid: The steamer can also be used as a drop lid. Combining the Main Body and Lid Microwave Heating for Small Amounts: Instead of the main body, you can put the ingredients in the lid and use the main body as a lid, allowing you to cook efficiently even with small amounts. Simultaneous Cooking: You can place ingredients in the main body, put a colander or a small plate on top, and then put the lid on to cook two dishes at the same time in a short amount of time. Important Notes The Tupperware Wave 2000 is a microwave-safe cooking utensil. Please refer to the instruction manual and recipe book for safe use. "Tupperware" is the name of a specific company's product. Specific Cooking Examples Steamed Chicken: Sprinkle sake on the chicken, place it in the Tupperware Wave 2000 with the steamer, and heat it in the microwave. Simmered Fish: Remove the steamer, put in the fish, add the seasoning liquid, and heat it in the microwave. Asparagus and Braised Pork: Using the oval product, you can cook them whole. *Although it is new and unused, please purchase only if you understand that it has been stored at home. It seems to be definitely versatile.