Project Source Commander shelf hooks

I bought a shelving unit at Lowe's, specifically the "Project Source Commander". It was designed with notches on the side to link multiple shelves together. Instead, I designed this simple hook to fit into those notches so I can hang things from the side of the shelves. The fit is snug, so it doesn't slip out unintentionally.

Print it at a very high infill for maximum strength. The "blank" file is for anyone who wants to use it as a base to design their own hook.