Doorstop (Fixed)

One of my first attempts at making something useful.
It's a fixed-size door stop, preventing my kitty from being stuck in a room.
The door thickness is assumed to be about 4cm.

UPDATE: I've recently added a more sturdy model - v2. I have no pictures of it, but the stl and blend file is included. This model consists of three parts rather than one. The "stops" are printed in a vertical position to give the model more strength, and I personally glued the stops to place with Tamiya Plastic Cement.

Notes:
- Blender, STL and gcode files are included
- Successfully printed using
- ABS (240C, 110C hotbed)
- 20% (or more) infill
- 0.25mm layer height
- Only true for v1: I should have rounded the corners; if unattached, you might cut yourself
if you step on the door stop. Beware!