This product includes a 10-piece set of left-side automatic document feeder (ADF) hinges compatible with the following models: M3040, M3145, M3540, M3550, M3560, M3645, M3655, M3660, M6030, M6035, M6530, M6535, M6230, M6235, M6630, M6635.Part numbers included: 302NM18021, 302NM18020.This is a compatible replacement component designed to support proper ADF functionality.