• Easy to color plaster casting
• One portal per package
• Outside measurement: 5-3/8" x 4-7/8"
• Inside measurement: 2-11/16" x 3-11/16"

Add a concrete tunnel portal over any HO scale track. Color with Earth Colors Liquid Pigments.
Outside: 5 3/8"w x 4 7/8"h
Inside: 2 11/16"w x 3 11/16"h