Add a concrete tunnel portal over any HO scale track. Color with Earth Colors™ Liquid Pigment. Outside: 5 5/8" W x 4 7/8" H (14.2 cm x 12.3 cm) each / Inside: 2 11/16" W x 3 11/16" H (6.82 cm x 9.36 cm)...

Use Earth Colors™ Liquid Pigment to detail Culverts in your choice of colors. Approximate outside dimensions: 3/4 in w x 1 1/4 in d x 9/16 in h (1.9 cm x 3.17 cm x 1.42 cm)

For a tunnel that requires a double track portal, the Concrete Double fits perfectly over two N scale tracks. Color with Earth Colors™ Liquid Pigment. Set contains two pieces. Outside: 3 15/16 in W x 2 1/2 in H (10 cm x 6.35 cm)...

Great for single track tunnels entrances and exits. Color with Earth Colors™ Liquid Pigments. Set contains two pieces. Outside: 2 15/16 in W x 2 7/16 in H (7.46 cm x 6.19 cm) each / Inside: 1 7/16 in w x 1 7/8 in h...

Give your tunnel a Cut Stone face. This double portal fits over two N scale tracks. Easy to color plaster castings. Color with Earth Colors™ Liquid Pigment. Set contains two pieces. Outside: 3 15/16 in W x 2 23/32 in H (10 cm x...

Models sturdy rock tunnel portals for any N scale layout. Easy to color plaster castings. Color with Earth Colors™ Liquid Pigment. Set contains two pieces. Outside: 3 5/16 in W x 2 21/32 in H (8.41 cm x 6.74 cm) each / Inside: 1...

Use Earth Colors™ Liquid Pigment to detail Culverts in your choice of colors. Approximate outside dimensions: 3/4 in w x 1 1/4 in d x 9/16 in h (1.9 cm x 3.17 cm x 1.42 cm)

Use Earth Colors™ Liquid Pigment to detail Culverts in your choice of colors. Approximate outside dimensions: 3/4 in w x 1 1/4 in d x 9/16 in h (1.9 cm x 3.17 cm x 1.42 cm)

Create the look of a random stone portal over a single N scale track. Color with Earth Colors™ Liquid Pigment. Set contains two pieces. Outside: 3 1/8 in W x 2 11/16 in H (7.93 cm x 6.82 cm) each / Inside: 1 9/16...

Use Earth Colors™ Liquid Pigment to detail Culverts in your choice of colors. Approximate outside dimensions: 3/4 in w x 1 1/4 in d x 9/16 in h (1.9 cm x 3.17 cm x 1.42 cm)

Create a timber tunnel portal over a single N scale track. Color with Earth Colors™ Liquid Pigment. Set contains two pieces. Outside: 2 5/8 in W x 2 21/32 in H (6.66 cm x 6.74 cm) each / Inside: 1 3/8 in W x...

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 create stepped, winged walls. Color with Earth Colors™ Liquid Pigment. Set contains six pieces. 1 5/16 in W x...

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 create stepped, winged walls. Color with Earth Colors™ Liquid Pigment. Set contains six pieces. 1 5/16 W x 2...

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 create stepped, winged walls. Color with Earth Colors™ Liquid Pigment. Set contains six pieces. 1 13/16 in W x...

Model cut stone tunnel portals on your HO scale layout. Color with Earth Colors™ Liquid Pigment. Outside: 6 3/16 in W x 5 1/4 in H (15.7 cm x 13.3 cm) / Inside: 2 11/16 in W x 3 11/16 in H (6.82 cm x...

Timber portals are an ideal addition to any HO layout. Color with Earth Colors™ Liquid Pigment. Outside: 5 in W x 5 1/16 in H (12.7 cm x 12.8 cm) / Inside: 2 5/8 W in x 3 13/16 in H (6.66 cm x...

Cover your HO scale tunnels with a random stone portal and color with Earth Colors™ Liquid Pigment. Outside: 5 5/8 in W x 5 1/16 in H (14.2 cm x 12.8 cm) / 2 13/16 in W x 3 11/16 in H (7.14 cm...

This Concrete Tunnel Portal fits over a double track. Color with Earth Colors™ Liquid Pigment. Outside: 7 5/8" W x 4 5/8" H (19.3 cm x 11.7 cm) each / Inside: 4 5/8" W x 3 3/4" H (11.7 cm x 9.52 cm)

Create a cut stone look for your double track, HO scale tunnel. Color with Earth Colors™ Liquid Pigment. Outside: 8 1/8 in W x 5 1/8 in H (20.6 cm x 13 cm) / Inside: 4 23/32 in W x 3 27/32 in H...

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 create stepped, winged walls. Color easily and realistically with Earth Colors™ Liquid Pigment. Set contains three pieces. 2 5/8"...

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 create stepped, winged walls. Color easily and realistically with Earth Colors™ Liquid Pigment. Set contains three pieces. 3 1/8"...

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 create stepped, winged walls. Color easily and realistically with Earth Colors™ Liquid Pigment. Set contains three pieces. 2 9/16"...

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 create stepped, winged walls. Color with Earth Colors™ Liquid Pigment. Set contains three pieces. 3 3/8" W x 5...