The Marble Level shows if a surface is level by using a rolling marble to indicate tilt
Print the "level" file.
Choose either "panel with numbers" or "panel without numbers" and print two copies, depending on your preference and printer capability (note: the numbered panel may be more challenging to print).
Insert a 16mm marble before attaching the panels. If the panels don't pressure-fit, you can glue them in place.
ItsOnMyMind
