I designed this model to space my desk off the wall and allow me to control my cables under the desk. You can pass cables through the lower opening or through the two integrated holes. The 1.125" model fits my IKEA Ekbacken countertop. The openings are all exactly 1", 1.125", and 1.25" respectively to allow for a tight fit that does not fall off if the desk moves away from the wall.
The author hasn't provided the model origin yet.