This is a model made to stack and store Sneaks vises and accessories. There are two versions one is thick and robust and the other is just enough to be pretty good with just two line widths for most of it. I love his model I just needed a way to store it.
See for the original model: https://www.printables.com/model/281912-bench-mountable-4-jaw-3-jaw-2-jaw-vise-with-swappa
A dime works excellent for a screwdriver.
The author marked this model as their own original creation.