White plastic H column profiles.  Perfect for modelling in most gauges but specifically designed for OO and HO gauges.   Imitates girders
Each girder column is square width so its the same height as it's width.  
8 sizes available.  Strong plastic, easy to cut, bond and build.  
Bulk quantity packs so you can save money on your larger projects.
Bulkscene product - registered trademark of Goodwood Scenics Ltd.