This is a thick aluminum plate/tray. Size: 42 x 30.5 x 1.8 cm It has been stored for a long time, but it's unused, so I'm selling it. It's large, so it can be used as a refrigerator tray, a serving tray, for baking, and more. #I'm selling kitchen goods, accessories, etc.! Buying in bulk is definitely a great deal!