Magic Chef LARGE 4.5 Gallon Glass Bowl Convection Oven with Adjustable Temperature Controls and Two Cooking Levels, Built-In Timer & Wash Function, Tongs Included Adjustable temperature control from 250-500 degrees Fahrenheit, can accommodate whole chickens, and roasts Extender ring increases capacity to 4.5 gallons with lip that will create a perfect seal Convection technology using internal fans and an efficient heating element ensures even cooking Heat resistant lid, handles, and tempered glass bowl, tongs, high and low racks for cooking included Convenient 60 minute timer & Wash function helps remove stubborn food stains