This part is the replacement upper spray arm retainer or mount for your dishwasher. It is made of gray plastic and is approximately 4 inches by 3 inches. The upper spray arm mount attaches the spray arm to the water supply manifold. If the mount is loose damaged, you may notice that the spray arm wobbles, or possibly hangs from the top of the dishwasher. If this is the case, the mount may need to be replaced. If your dishes are not being cleaned properly, you may want to inspect the mount to ensure that it is not loose, disconnected, or damaged. This part is sold individually and is an authentic OEM part.