This part is the replacement fabric softener cap for your washer. It is also known as the washer dispenser drawer insert. It is made of blue plastic and is approximately 4-1/4 inches by 2-1/4 inches. The fabric softener fits inside the dispenser drawer and holds fabric softener and bleach. The main reason to replace this cap is if it is damaged or missing. This part is sold individually and is an authentic OEM part sourced directly from the manufacturer.