This Atlas HO Scale Code 100 Snap-Switch Manual Turnout features Code 100 nickel-silver rail with black molded-plastic ties and a plastic frog. The turnout comes equipped with an attached manual, above-benchwork switch machine. The 18" radius turnout also includes a 1/3 18" radius curve compensator track so for planning it equals one 18" curved section. The track geometry of Code 100 Snap Track matches that of Code 83 Snap Track, so Code 100 track can be substituted for Code 83 in various Snap Track track plans when using adaptor track joiners (sold separately). Code 100 Snap Switch turnouts are part of the extensive line of Atlas HO Scale Code 100 track.