Atlas 153 HO CODE 100 22″ RADIUS TRACK – BULK 100/BX\nFeaturing black ties and nickel silver rail, Code 100 is extremely popular and considered an industry standard. What’s more, Atlas Code 100 track can be used by modelers at any skill level and is available in a wide variety of pieces. Precisely engineered with black injection molded plastic, Atlas Code 100 track can help you create your model railroading empire.