This part is a replacement retainer for your dishwasher. It is made of gray plastic and measures approximately 3 inches high by 2.5 inches deep. This retainer is used on the lower rack of your dishwasher and holds the tine row in position. If your tine row will not stay in place, or if the retainer is damaged, this is the part that can replace it. This part is sold individually and is an OEM part sourced directly from the manufacturer.