Bachmann 16322 HO Scale Track Cleaning Boxcar Western Pacific WP 19522 Bachmann's track-cleaning car provides an efficient and economical way to clean your track, featuring an exclusive dry cleaning system with a reusable pad attached to the underside of the chassis. This 40' Boxcar features opening, sliding doors. Track Cleaning Replacement Pads, Item 16949, available. FEATURES: Reusable and replaceable dry cleaning pad Opening, sliding doors Blackened metal wheels E-Z Mate® Mark II body-mounted couplers Non-magnetic axles Detailed underframe