Dalton, This was included in a lucky bag sometime ago. Unused, long-term storage. In a bag, the rubber packing was clean. Not microwave or oven safe. This is a set of M and L sizes. K20-0124L/BE SS FOOD CONTAINER RECTANGLE L BEIGE A food container perfect for outdoor scenes such as camping and picnics. Made of stainless steel, it is rust-resistant and durable, so it can be used toughly for a long time. Also, it is resistant to color and odor transfer, and it is easy to clean.