This is a hook for picture rail that is designed to accomodate multiple uses. It can hang a lanyard or similar across the hook and has a hole for threading a picture wire or cord. Hang jewellery. Hang a long dowell with a kimono. Hang all the things.

Designed a little wider for stable mounting and strength.

I'd recommend printing it in something other than PLA if there is any substantial load. It prints very cleanly in PETG.