These are bin nameplates for Seville Classics NSF bin shelving systems. They are sized for large bins. You print the nameplate and it slides right into the slot on the bin.
They were created in TinkerCad.
I printed with Prusament PETG on a Prusa Mk3S+. I got great results with 0.20mm and 20% infill. I used Prusa Slicer to detect the text and print in a different color, changing filaments at the color change level.
I use the bins to store hobby related stuff, hence the labels.
The author marked this model as their own original creation.