Using the Walthers Cornerstone HO Scale Armstrong Electric Motors Background Building is easy. First, decide where you want to place it on your model railroad layout, usually between the rearmost tracks and the backdrop. If you want to add more fun, install a spur near the loading dock. You can customize the building easily by cutting it to fit your specific needs. When handling the building, be careful not to break the clear plastic parts. To keep it in good condition, just dust it off regularly. It's suitable for both steam and diesel - era layouts, so you can use it in different themes. And remember, it comes in three different sizes, so choose the one that fits your layout best.