The Woodland Scenics N Scale Single Tunnel Portal in a concrete style is a scenic detail piece designed for N scale (1:160) model railroad layouts. It features a single-track arched opening with a cast concrete block appearance to blend naturally into rock face and hillside scenery. This is a factory Woodland Scenics replacement or addition for modelers building or expanding N scale scenes. Features: N scale 1:160 compatible Single-track tunnel opening Concrete block aesthetic styling Designed for rock face and hillside integration 7/7/26 cs