The AEG CCB6440BBW can handle oblong casseroles and roasting trays with ease. The back-right cooking zone can be expanded so you can use it as an extra-long cooking zone. The oven features telescopic rails. Thanks to these rails, you can easily slide your baking sheets and racks in and out, similar to a desk drawer. This telescopic sliding system has 2 levels, so you can easily prepare 2 dishes at the same time.