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!