The Proto 2000 E7A E7B UNION PACIFIC NUMBER A990.B990B is a highly detailed diesel locomotive replica in 1:87 scale. This model features a Bo-Bo wheel configuration, analog control system, and is made of plastic material. Perfect for collectors and enthusiasts of model railways, this AC-powered locomotive is a replica of the E7AB design, adding authenticity and charm to any HO gauge train setup. Get your hands on this Union Pacific locomotive to enhance your railway collection today.