This is a wall mount/holder for a vacuum cleaner tube/nozzle. You probably do not need this unless you have a central vacuum cleaner, where there is no “natural” place for storing the tube/nozzle.
The holder comes with a backplate to protect the wall, and attaches to the wall with screws. Note that the “far end” of the tube is unsupported and hangs freely, which makes using this very easy, but also means that it could touch the wall or other structures. But OTOH, if you just leave the tube on the floor, leaning against the wall, then it will touch the wall for sure :).
Printed in PLA, 10% rectilinear infill, 3 walls with 0.4. line&nozzle. Other settings probably work as well.
The author marked this model as their own original creation.