Magic Chef Microwave Glass Turntable Plate / Tray 12 3/8" This microwave plate ONLY fits the Magic Chef models listed below. If you are unsure about compatibility please email us with your model number BEFORE ORDERING. Glass turntable plate / tray for Magic Chef microwave ovens. Measures approximately 12 3/8 inches in diameter. The inner ring where the turntable wheels fit has an outside diameter of 8 3/8 inches.