My shower has a curtain rod close to the wall for covering a window.
These sides for the shower caddy are to hang it from those rods so it will sat level
The centre of the rod is about 35mm from the wall and the rod is about 25mm in diameter.
Find the rest of the shower caddy at https://www.printables.com/model/154798-shower-caddy-250mm-widetall
The author remixed this model.
I changed the shape of the hooks and moved them closet to the body of the caddy so it would hang level when hung from a curtain rod close to the wall