PreciseAir Convection System - Delivers even air and heat circulation for superior baking and roasting results. Single/Multi-Rack Convection Bake - Provides ideal airflow throughout the oven ensuring optimal results on both racks. Hidden Bake Oven Interior - Hides previously exposed bottom element to deliver a clean interior appearance. Warming Drawer - Convenient drawer keeps breads desserts or just-cooked foods warm and ready-to-serve. Dual Size Ribbon Element - Offers a convenient choice of using a 9 in. or 12 in. heating element depending on the size of the pan. Self-Clean Oven - Conveniently cleans the oven cavity without the need for scrubbing.