Replacement retention nub bracket on an Ikea Hemnes show cabinets.

You should use consider print orientation when printing to ensure that you get strength in the right axis. I printed mine on the narrow edge with a little support material for the nubs.

Test printed in PLA and it seems to be working well!

This is the cabinet I have, but I suspect it will work on any of the Hemnes shoe cabinets: https://www.ikea.com/us/en/p/hemnes-shoe-cabinet-with-2-compartments-white-20169559/