This Woodland Scenics tunnel portal is molded in a random stone pattern and sized for N scale layouts at 1:160 ratio. It features a single-track arched opening designed to blend naturally into mountain or rocky terrain scenery. A factory replacement or add-on portal for modelers building or expanding N scale train layouts. Features: N scale 1:160 ratio sizing Single-track arched tunnel opening Random stone texture molding 7/7/26 cs