Providing seamless service from the Northeast to the south and west, the Pennsylvania partnered with many railroads in offering single-ticket options for long-distance travel. To accomplish this, sleeping cars were switched from one train to another at connecting points. Because the majority of miles were usually on the western connecting road, the cars were typically painted to match their consists. This could provide a little extra color to the Pennsylvanias trains. Even the Broadway Limited carried a "mixed" consist with a connecting car for the Santa Fes Chief. These special 2 packs are the perfect match for many of our existing 21" passenger train consists, whether youre an east or west modeler. Flicker Free LED interior lighting Die-cast sprung trucks Operating couplers Easy conversion to scale couplers (available separately) Molded plastic interior details PRODUCT SPECIFICATIONS Rail Line: Missouri Pacific Gauge: O Gauge Power: Electric Min Curve: O54 Dimensions: Length: 21" each WARNING: CHOKING HAZARD - SMALL PARTS! NOT INTENDED FOR CHILDREN UNDER 3.