O Gauge Tunnel Portal Kit, Double Track, with lots of masonry detail, and curved Wing Walls. Loosely based on the Greet Tunnel Portals, Gloucestershire. Overall sizes: 681mm x 61mm x 200mm High. For Portal opening size see the pictures. Comes in 6 pieces which can be clipped and glued together. Comes with instructions. Name Plaque and Date Plaque are separately applied. Manufactured using FDM process in Grey PLA which can be painted.(Shade of Grey may vary)