The MTH RailKing NW-2 Diesel Switcher in O Gauge is a replica of the Santa Fe train, perfect for transportation enthusiasts. This ready-to-go switcher is designed for a three-rail system and features digital control for a realistic experience. Made of plastic and with a scale of 1:48, this model is a great addition to any model railroad collection. The inclusion of the original box adds to the appeal of this vintage-inspired piece.