The product is an N Scale InterMountain Southern Pacific SP SD40T-2 #8251 DCC #69421-02 model diesel locomotive. This locomotive is designed to run on a specific gauge of model railroad tracks, known as "N Scale." Its corporate roadname is the Southern Pacific, making it a replica of a locomotive used by that railroad. The DCC #69421-02 indicates that it is equipped with Digital Command Control technology, allowing for more precise and efficient operation on model railroad layouts.