Dimensions: 7.9mm x 6.7mm x 610mm (outer diameter x inner diameter x length).
Along with the panels, films, micro-strips, profile strips or textured sheets made from polystyrene or ASA, these tubes are a standard component of architectural model making. Because of their excellent quality despite extremely thin walls, the tubes produced by the American company EVERGREEN are particularly noteworthy. Evergreen products can be recognized because their dimensions are not a rounded number (for example 2.4 mm diameter).
You should be very careful when cutting these thin walled tubes: first score the tube with the cutter, and then break it off. In model making it is normally glued with either DICHLORMETHANE or some other solvent.