1) Door seal - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2) Cover Heater 3) Heating Element 4) Oven cavity 5) Safety interlock system 6) Knob V.P.C - Used to select microwave poer level. 7) Knob timer - Used in setting cooking time for all functions. 8) Metal Rack 9) Coupler - This fits over the shaft in the center of the ovens cavity floor. This is to remain in the oven for all cooking. 10) Roller guide - This must always be used for cooking together with the glass cooking tray. 11) Glass cooking tray - Made of special heat resistant glass. Food in a proper receptacle is placed on this tray for cooking. 12) Door viewing screen - Allows viewing of food. The screen is designed so that light can pass through, but not the microwave. 13) Door hook - When the door is closed, it will automatically shut off. If the door is opened while the oven is operating, the magnetron will immediately stop operating.