Ikea Skådis - holder for foldable ruler

A holder for a 2m ruler that can be attached to a Ikea Skådis pegboard. The inner dimensions fit my ruler, and are:
- 32mm long
- 17mm wide

Measure your ruler before printing this, I'm not sure if this fits most 2m foldable rulers or not.

The design is so that there are no angles steeper than 45 degrees if you print it upside down, and so no supports should be needed for this one.