This is a bin that is 1/3rd the height (~27 mm) for the Milwaukee Packout 4 inch container. It is intended to have two of these bins stacked on top of my
Milwaukee Packout 4 inch Container 1/3 height Vertical Divider https://www.printables.com/model/973626-milwaukee-packout-4-inch-container-13-height-verti
The author marked this model as their own original creation.