This part is the replacement door rack for your refrigerator freezer. It is made of white plastic and is approximately 23 inches by 5 inches in size. The door rack connects to your freezer door and allows you to store items on the door shelf, without the items falling out when you open or close the door. The main reason to replace the door rack would be if it is cracked, broken, or missing. To replace the door rack, carefully pop it out of the guide holes in the freezer door and snap the new rack into place. This part is sold individually and is a genuine OEM part.