This is a replacement door bin for your refrigerator. The door bin is made of white plastic, and measures approximately 18 inches wide, 5 inches tall, and 6 inches deep. It is sold individually. The door bin connects to your refrigerator door and allows you to store items. The main reason you would be replacing the door bin is if the original bin is damaged or missing. To replace the door bin, simply slide the old bin out, and replace it with the new one. This is an authentic OEM part.