Atlas #4001006 28″ SUPERFLEX HAIRPIN STYLE FENCE-MODERN The difference between the classical and the modern hairpin fence is the addition of an aesthetic center bar. The center bar was added to make the design more interesting and was used to make the fence more desirable to a culture growing more aware of design and more concerned with putting form before function. FEATURES INCLUDE Made from a durable composite material Perfect for use with any O scale model house Stands at 1 1/8″ tall