This is a replacement hinge bearing for your refrigerator. The hinge bearing is found on the door hinge, and reduces friction when the door opens and closes. If the bearing is damaged, you may not be able to open or close the door properly, and in this case, it will need to be replaced. It is made of white plastic and is approximately 2 inches long and 1 inch in diameter. This part is sold individually and is a genuine OEM part.