The Athearn 95196 HO Union Pacific United Way SD40-2 Diesel Locomotive #3300 is a pre-built model replica of a Union Pacific Railroad diesel locomotive. This 1:87 scale model features a multicolor design with light function and is ready to go on a two-rail system. Made of plastic, this analog-controlled locomotive is a perfect addition for model railroad enthusiasts who enjoy collecting transportation-themed items. With a detailed design and accurate representation of the Electro-Motive Diesel (EMD) replica, this Athearn model is a must-have for collectors aged 17 years and up.