The author remixed this model.
This is a remix of this Model (https://www.printables.com/model/271945-gridfinity-holder-for-pokit-pro-all-in-one-multime), removing all Gridfinity aspects, but keeping the insert shape for the Pokit Pro, as I wanted the shape profile to hold the Pokit Pro, but I wanted to build a box for it so I can carry it around - as Pokit Pro had not released a case for 2 Pokit Pros at the time (Oct 2022).