This package includes 10 pieces of 302NM18021 ADF hinges compatible with models M3040, M3145, M3540, M3550, M3560, M3645, M3655, M3660, M6030, M6035, M6230, M6235, M6530, M6535, and M6630.This replacement hinge component is designed to fit the specified printer models and is intended for use in assembly or repair.Verify model compatibility before installation.