This HO scale Bachmann locomotive and caboose combo is a replica of the 4-4-0 Jupiter steam locomotive and tender used by the Central Pacific Railroad. The model is ready to go and pre-built, with a two-rail system and analog control. Made from various metals and plastic materials, it features a red, black, silver, and gold color scheme and a vintage design dating back to 1976. The set includes a tender and caboose, and is graded C-7 excellent. It has a wheel configuration of 4-4-0 and a gauge of HO. This model is suitable for ages 12-16 and is a great addition to any collection. The Bachmann brand is well-known for its quality model railroad products and this set is no exception. Listing as New-Other, as it appears to have not been run, maybe factory run, was grandfather's & has been on the shelf for 45 yrs, box has minimal shelf wear, tested & runs, see pictures. sold as is.