$11.95
About Terrain Structures Tunnel Portals, Retaining Walls, Culverts, and Roads reinforce natural terrain contours and add functionality, realism and interest to your layout.
Model cut stone tunnel portals on your HO scale layout.
Color with Earth Colors™ Liquid Pigments.
Outside: 6 1/16" w x 5 3/16" h (15.3 cm x 13.1 cm)
Inside: 2 3/4" w x 3 3/4" h (6.98 cm x 9.52 cm)