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Use Earth Colors™ Liquid Pigment to detail Culverts in your choice of colors. Approximate outside dimensions: 2 1/2 in w x 1 3/8 in d x 1 1/8 ... more info

This Concrete Tunnel Portal fits over a double track. Color with Earth Colors™ Liquid Pigment. Outside: 7 3/8 in w x 4 7/8 in h (18.7 cm x 12.3 ... more info

For a tunnel that requires a double tunnel portal, the Concrete Double fits perfectly over two N scale tracks. Color with Earth Colors™ Liquid ... more info

Specially formulated for adding color to Plaster Cloth, Flex Paste, foam, wood, plaster and papier mache terrain models. Our product is non-toxic, ... more info

Use Retaining Walls alone, installed adjacent to each other to create straight or curved walls or use with Tunnel Portals. Cut to varying heights to ... more info

Use Retaining Walls alone, installed adjacent to each other to create straight or curved walls or use with Tunnel Portals. Cut to varying heights to ... more info

      In kit form (2 pieces). Assembly required. Width: 1”; total length: 33” of straight sections plus 8 corner sections ... more info

Add a concrete tunnel portal over any HO scale track. Color with Earth Colors™ Liquid Pigment. Outside: 5 3/8 in w x 4 7/8 in h (13.6 cm x 12.3 ... more info

Great for single track tunnels entrances and exits. Color with Earth Colors™ Liquid Pigments. Set contains 2 pieces. Outside: 2 7/8 in w x 2 ... more info