Customizeable and changeable shower shelf system

Update: Forgot to upload the mounting clip As mentioned in the Profile - has to be printed in PETG ! Please don´t use PLA and come back to cry. Also Filament / Printer has to be calibrated properly otherwise it will bend and / or doesn´t fit by itself and need glue. I printed the first 2 of them a year ago, and they are still hanging, no bends, no loose parts - still without glue and sometimes with heavier bottles. I was always disappointed about those “stainless” metal baskets for the shower - a few months later they start rusting.So i tried to design my own one - if it gets dirty i put it in the dishwasher or print another. If i need more space for more shower accessorys i print an extension :)At the moment only the extension needs some glue - but it is designed to hold together by force (weigt in a shelf).Everything else is just “clicked” together with those little clips. They are designed to stand out of the back, because i wanted to offer less surface for water as possible. So the