I wanted a soap dish that would hold any of the Dr Squatch bars.
This will fit any 3in x 3in soap bars.
The holes in the walls are for suction cups. Just pull the hook off. I used the following ones from Amazon, poking them through provide a good grip to hold it to the corner of the shower.
https://www.amazon.com/gp/product/B07WGRS1D5/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
The author hasn't provided the model origin yet.