Tunnel Portals, Retaining Walls, Culverts, and Roads reinforce natural terrain contours and add functionality, realism and interest to your layout! ~ Get the look of timber portals on your HO layout. ~ Color with Earth Colors Liquid Pigments. ~ Outside: 4 7/8″w x 5 1/8″h – Inside: 2 5/8″w x 3 3/4″h.
