This rail end cap, or dishrack stop clip, is a genuine OEM replacement part for your dishwasher. This part keeps the rack in your dishwasher from sliding out. This is a very easy repair, to complete it you only need a flat blade screwdriver. Use the screwdriver to pry the locking tab open on the cap, located at the front of your upper dishrack. Pull off the end cap and lock the new one into place.