This is the replacement detergent cup release arm for your dishwasher. It is made of black plastic and is sold individually. The detergent cup release arm is found on the inside of the dishwasher door, and it is the part that releases both the detergent and the rinse-aid. If the rinse-aid and detergent are not being released during the dishwasher cycle, or you notice that the release arm is cracked or damaged, then you will need to replace it. A damaged detergent cup release arm can also lead to a door latch failure on your dishwasher, and it may cause the dishwasher not to start. This is an OEM part sourced directly from the manufacturer.