The MTH 20-4054 Baltimore and Ohio Madison 5 Car Set is a pre-built model train set in 1:48 scale, featuring passenger cars in a classic blue color. Manufactured in 2003 by MTH, this set includes five cars with light functions and is ready to go on a three-rail system. The diecast and plastic construction, along with the detailed design, make it a desirable collectible for model railroad enthusiasts aged 17 years and up.