The Lionel 6-19166 Northern Pacific Vista-Dome Aluminum 4-Car Passenger Set is a highly detailed model train passenger set in O gauge. This set features the iconic Northern Pacific Vista-Dome cars, perfect for adding realism to any model railroad layout. Made by the well-known brand Lionel, this passenger set is designed for use on a three-rail system and is scaled at 1:48. Whether for collectors or hobbyists, this set is sure to enhance any train layout with its sleek design and attention to detail.