Oster Microwave Glass Turntable Plate / Tray 10" This microwave plate ONLY fits the Oster models listed below. If you are unsure about compatibility please email us with your model number BEFORE ORDERING. Glass turntable plate / tray for Oster microwave ovens. Measures approximately 10 inches in overall diameter. Outside diameter of turntable track is 8 1/4 inches.