This is a simple, easy to print hook to suit the Ikea Pegboard system.
If it differs from others it is in the fit, which is not over tight, to enable simple removal and relocation, and for some reason most Skadis hook styles are semi-circular to hold the object a little off the wall - this one is a quarter circle, and will tend to hold anything hanging tight against the board.
The author marked this model as their own original creation.