This part is the replacement chiller door for your refrigerator. It is made of clear plastic and is approximately 10 inches long and 13 inches wide. The chiller door connects to the chiller in your refrigerator door, protects the items inside, and prevents items from falling out. It pivots on a hinge to the door can be easily opened to access the items inside. The main reason to replace the chiller door is if it is cracked, the hinges are broken, or the door is missing. To replace the door, carefully compress the sides of the door to slide the hinges out, then snap the new door into place. This is an OEM part and is sold individually.