This part is a retaining ring, sometimes called a retaining clip, that holds the drum support roller onto the shaft of a dryer. It is made entirely of metal and measures less than an inch in diameter. The retaining ring is a genuine OEM part sourced directly from the manufacturer. The ring may vary in appearance due to manufacturer substi...Read moretution, but the function is the same. You may need to replace this part if the dryer is noisy during tumbling, will not tumble, or takes too long to dry. Be sure to check drum support roller kit and shaft before ordering parts.