Slant Level

There was a need for accurate and convenient setting of the angles of inclination of equipment and materials. I didn't buy a slant level tool, but made it myself.
You will also need a level bubble cylinder (i used 10x25 mm) and 12 metal or plastic 6 mm balls used as a bearing (i used airsoft-gun balls).
On the sides there are 4 slots for installing magnets 20x10x2 mm.

I am also attaching a *.dwg file for AutoCAD where you can edit the details as you wish.