How do you say "smooth, easy writing" in chinese, french, spanish, arabic, russian, hindu, and german?

How do you say "smooth, easy writing" in chinese, french, spanish, arabic, russian, hindu, and german?

And if anyone knows of fonts that can be downloaded, of these languages that would be great!

I’m trying to make some promotional advertising for a marketing class and need some other languages incorporated into my presentation

are you describing a pen?
in chinese you can use 流暢, 易寫