Pentagram
thingiverse
This text clearly states that the subject is a pentagram, and also mentions the availability of a FreeCAD model for it.
Download Model from thingiverse
With this file you will be able to print Pentagram with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Pentagram.