Styro-Flex Walls & Tunnel Portals -- Wall (gray) 13-25/32 x 4-15/16" 35 x 12.5cm

Styro-Flex foam tunnel portals and wall sections feature cut-stone surface detail that's easy to weather to match your scenery. Simply cut the material to fit your scene with a sharp hobby knife (sold separately) to install realistic tunnel portals, retaining walls, arcades and more while creating the look of structures that were built at the same time.