This is a replacement rack for your oven. The oven rack fits into grooves on the side of the oven wall, and acts as a shelf that you can place food items on when you want to cook them in the oven. This rack is 24 inches wide and 16 inches long, and is chrome in color. Occasionally, the rack will become warped or distressed, or it may be missing from your oven. In these cases, it will need to be replaced. To replace the rack, simply slide out the old rack and replace it with the new one.