This is a replacement door shelf for your refrigerator. It is made of white plastic and is approximately 17 inches wide, 6 inches deep, and 4 inches tall. The door bin shelf holds items that are stored in the door in place. You will want to replace the door bin if the old one is cracked, damaged, or missing. To replace the door bin, simply snap the old bin out and snap the new one into place. This bin is sold individually and is an OEM part sourced directly from the manufacturer.