The NuWave Oven Pro Plus is incredibly convenient Easytouse power head is so intuitive that all you have to do is touch and go It uses 75 less energy than a standard oven while cooking up to 70 faster than a standard oven The Pro Plus lets you cook at any temperature between 100F and 350F in 1degree increments It also features a new shatterresistant dome The Extender Ring will increase the capacity of your Oven by up to 50 allowing you to cook up to a 16pound turkey or a 14pound ham from frozen The kit includes a 3inch Extender Ring 10inch NonStick Baking Pan and a 2inch cooking rack