This is a scalable box (using Fusion360). The Width controls the X dimension, the Length controls the Y dimension, and the Height controls the Z dimension. It doesn't have a fit tolerance so it may not work will all printers, however, I use it a lot for various things (change storage, parts storage). It is a good test to see how ‘true’ your printer is printing. As for printing profiles, I have had great success using the stock printing profiles.