Atlas N True Track features realistic Code 65 nickel silver rail in a molded roadbed base. Sections feature molded brown ties based on U.S. practice tie spacing and mottled ballast for a true-to-life look. In addition to metal rail joiners the roadbed has positive locking tabs so when you snap the sections together they stay connected. It's available in multiple curve radii and a variety of straights, turnouts and special sections.