This is a holder for a 3mm fibre glass internet cable, that can be glued to surfaces with double sided tape. For better rigidity I printed it laying on the small straight surface.
ok, I had the wrong orientation in my print plate. The part must stand on the small side to prevent a clean look. And I decreased the layer height from 0.24 to 0.2 (but 0.24 would be enough as well). Sorry, maybe you will change the rating, when it comes out clean ;)