This is a magnetic base for the Adjustable PCB Holder Tool.
This can be useful if you have a metal base that you are working on, such as with the Helping Hands tool.
Each mount is printed separately so that the pillars can be positioned any distance apart. If you want them to be aligned, then there is an additional connecting rod that can be fitted to join the two ends.
Assembly instructions:
The author remixed this model.
Magnetic base stand.