I’ve lived here over a decade with no shelving in the shower, and I finally bought an organizer! This has been a huge quality of life upgrade, it’s great having everything off the floor within reach. The shelving was super easy to install and I feel dumb tolerating the situation for so long.
I have one that looks just like that but without the rod. Maybe the rod in the picture isnt part of it. Mine holds on the wall with two adhesives. It also came with screws but i didnt use them as the adhesives are holding on just fine, and its been a few months already.