By making a tooling change to the mold

Trainz Product Id: 12396985

Trainz Product Id: 11959669

completed layout needs no plywood base or additional structural support

Here is BLMA 52733 HO Scale Tropicana TPIX 64' Reefer #3144

Walthers 910-19407 HO Chicago & North Western EMD GP15-1 SoundTraxx #4405 ProductID_12110725 By making a tooling changeThis is a WalthersMainline 910 19407 HO Scale EMD GP15 1 SoundTraxx(R) Sound & DCC Chicago & North Western(TM). #4405 * Limited edition one time run of these roadnumbers! * Prototypes in service 1975 to the present * NEW Available with factory Installed SoundTraxx. sound for DCC and DC layouts * 16 Bit digital quality sound Horn and short horn toot Bell Prime mover Three lighting functions * Same powerful drive as WalthersProto. locos featuring: Five