Tunnel Entrance Size: Height = 78mm, Width = 128mm.
PECO NB-32 - 1 Pair Grey Stone Double Tunnel Mouth & Wings Plastic Kit N Gauge 1
4 x Single Stone Railway Tunnel Entrance - N Gauge Scale (1:148) Unpainted
N Gauge Single Stone Railway Tunnel Entrance - Pack of 2
Bigjigs Rail Grey Stone Tunnel, Wooden Train Track Accessories, For Kids
OO Gauge 2 x Double Track Stone Portal Tunnel Model Railway 1:76 Scale
