Assertion: fountain pen's ink | /r/HasProperty | safe to use
Facets:
Source sentences:
text: The easiest way to find inks that are safe to use in fountain pens is to simply check out our list of bottled fountain pen inks.
text: If you’re just getting started using a fountain pen, it can take a bit of work, but once you become familiar with the popular brands, identifying which inks are safe to use won’t be a problem.