This kit builds into an N gauge model of a stone built, twin track tunnel mouth with curved walls.   The main structure is laser cut from plywood, with the interior tunnel wall` cut from card.    A short section of the stone etched tunnel interior is included, along with full colour assembly instructions.   The model is designed to be built into a hillside, rockface or other similar terrain.    

The tunnel entrance at ground level measures 55 mm (w) x 32 mm (d) x 47 mm (h).   The actual width of the overall structure will vary depending on the final positioning of the embankment walls.

The kit contains sufficient parts to make one tunnel entrance.