This is the replacement hinge washer for your refrigerator. The hinge washer is mounted on the top of the door hinge pin, and supports the refrigerator door, allowing it to open and close easily. The main reason you would need to replace the hinge washer is if it is worn out, causing the refrigerator door to be more difficult to open and close. You may also hear an unpleasant noise when you open your refrigerator door. The washer is a little less than an inch in diameter and is sold individually. This is an authentic OEM part sourced directly from the manufacturer.