Woodland Scenics
Add a concrete tunnel portal over any HO scale track. Color with Earth Colors™ Liquid Pigment.Outside: 6 1/16 in w x 5 3/16 in h (15.3 cm x 13.1 cm)Inside: 2 3/4 in w x 3 3/4 in h (6.98 cm x 9.52 cm)