For a tunnel that requires a double tunnel portal, the Concrete Double fits
perfectly over two N scale tracks. Color with Earth Colors Liquid Pigment. 2
Outside: 3 7/8" w x 2 1/2" h (9.84 cm x 6.35 cm) each
Inside: 2 7/16" w x 2 1/16" h (6.19 cm x 5.23 cm) each
About Terrain Structures
Tunnel Portals, Retaining Walls, Culverts, and Roads reinforce natural terrain
contours and add functionality, realism and interest to your layout.
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