[dougdude3339]

I used one of these bizarre pouches as a gentle final pass to clean up drawings. The graphite "smear" from the t-square happened with every drawing - thanks for sharing this top. Before starting a new drawing I would wipe down the tools to start fresh!

[hydrogen7800]

When I learned, we were told to keep that dust on the drawing the whole time rather than just the end. We always had a small dusting brush nearby to sweep it off as it got dirty.