This Skadis rack can hold 2x a 250ml Tamiya X-20a, airbrush cleaner or lacquer thinner container. Inner dimensions are 55mm x 72.5 mm
The design was inspired by the Skadis Tamiya Cement etc holder of SoBaldrick
https://www.printables.com/model/42930-skadis-tamiya-cement-etc-holder/comments/534783
The author marked this model as their own original creation.