Designed to replace a standard U.S. double light switch cover in order to add a shelf to it.

There are two versions: one with a rectangle shelf, and another with a more rounded shelf as to avoid sharper corners being potentially too pointy (if you were to bump into it for instance).

The cover lacks supporting chamfers for aesthetic reasons, so the material you're using needs good layer adhesion. I printed mine in PLA+ and haven't had any issues after several accidental whacks.