Designed to hold my bike on wall to gain space.
In my case, the bike weighs 13 kg and I used it over a year without any problem.
123D file uploaded with STL so you can edit it without trouble to adapt screw hole to your use. In my case i used Molley bolts for plaster.
Top/Bottom Layers : 4 (0.8mm)
Outline/Perimeter Shells : 3 (1.2mm)