HO-SCALE ORNATE SINGLE CONCRETE PORTAL - Overall outside dimension: 4-3/4" W x 5" H x 3/4" thick. Inside Vault Measures: 3-1/2" high x 2-1/4" wide. ORNATE CONCRETE SYSTEM is an integrated system of matching wall, portals & Scale Masonry components: FL4165-HO single ornate concrete portal FL4266-HO double ornate concrete portal FL4200-HO Concrete Retaining Wings