Atlas N scale 1-11/16″ Bridge Piers (3pcs) – AT-2543 Designed for use with N scale Atlas railroad layouts or dioramas. Piers are used with N scale girder sets with the construction of bridges in over-and-under layouts. One-piece molded gray plastic piers. This item is intended for modelling use and is not a toy. Actual product may vary slightly from the pictures shown.