The 12.75-inch Glass Turntable Tray is a clear plate designed for use in convection microwave ovens. Made from durable glass with a turntable feature, this tray is perfect for cooking or reheating your favorite meals. With an overall diameter of 12.75 inches, it offers ample space for placing food items and allows for easy rotation while cooking. The California Prop 65 warning reminds users of potential health risks associated with the product, making it a safe and reliable choice for your kitchen needs.