In good preowned condition!!! Plastic in the oven? Yes you can! No, you’re not dreaming. Yes, it’s oven-safe Tupperware. Elegant, lightweight, and stackable, this is the ultimate all-in-one cooking and serving solution. This is the Tupperware that truly does it all. It’s fridge, freezer, microwave, oven, and dishwasher safe while being gorgeous on the table. What more do you need? The UltraPro ovenwares are lighter than classic oven containers made of ceramic, clay, glass, or cast iron, making them so much easier to handle for you daily meal preps. The rounded shape of the base and the domed cover optimize cooking with even heat distribution and reduce hot spots that can result in overcooking. Healthy foods are made easier thanks to the non-stick qualities of UltraPro Ovenware. No added butter or oils are needed for cooking most recipes. Steam release vents on the sides of the base and cover help prevent steam build-up and regulate humidity to let your food brown nicely while keeping optimal moisture. The easy to use UltraPro can be used for simple and quick or traditional and sophisticated dishes with great results each time. From savory to sweet, it's the master of family sized: