Made to support two curtain rods 14mm in diameter. Takes normal dry wall screws. The one in the image was printed using some random woodfil pla I purchased years ago to test. It's been holding up that curtain and rod for almost 2 years now. So I guess pla is fine but keep in mind the temperature limitations of pla and how heat travels up your walls from a radiator, or how cold creeps in from outside etc. As usual, for anything that will be yanked on or be in constant use I recommend PETG but that's cuz it's also my fav type of filament.

20% infil at least 3 walls print for strength