Manual control switch allows you to change the direction of the rail For use with Atlas code 83 track only Fits HO scale True-Track Satisfaction Ensured. Produced with the highest grade materials Atlas HO Code 83 track is the choice of discriminating modelers of all skill levels and has become the new standard in model railroading. Featuring prototypically-fine brown ties and nickel silver rail, it not only looks realistic but is incredibly reliable. An entire line is available, including switches, crossings, straight and radius pieces, allowing you to create any one of a number of interesting and exciting layouts, including every layout in our popular HO layout instruction books!