This O scale tunnel portal set of 2 is perfect for any model railroad enthusiast! Make your train layout come alive with these realistic brick/block tunnel portals for O gauge model trains, such as Lionel, MTH, or Railking. Each portal measures 9 1/2″ wide X 9 3/4″ high. Inside opening measurements are 5 1/2″W X 6 3/4″H. Hand crafted from polystyrene, painted brown with gray mortar joints, and accented with a white wooden cap. TRAINS NOT INCLUDED.