Picture frame hanger with clip

I bought some cheap frames and the bendy metal clips you're supposed to hang them with didn't fill me with confidence. These are to replace those, clipping to the wood on the back of the frame.

If you'd rather screw these to the frame, download the file I remixed this from instead.

I printed them with a raft as the small footprint may result in adhesion issues, but that might not be needed.