Selection of used Stainless Steel Plate Warmers. Whether you manage a hotel or hospital cafeteria, you are reliant on your plate covers to store dishes during transportation while keeping meals hot. These ensure that the job is done in the most rugged and efficient way possible with this 10-15/16" - 11" Plate Cover.. It is made from satin finish stainless steel and has a finger hole for convenient removal. It is suited to plate diameters of between 10 15/6 and 11 inches. It is rust resistant and keeps its attractive look for many years.