Plastruct: N Scale: LS-2 Styrene LStair (90661).
These are used for modeling open stairways which are commonly found in industrial complexes, high-rise fire stairs, parking structures, tanks, platforms and other unfurnished or open structures. These are ideal where assembly speed and cost are the determining factors.
Precision Extruded White Styrene Plastic is ideal for use in all facets of scratch model building