A lot like a rusto fat output. The lines are "heavy" and consistent. This is a nice cap for tagging and filling, again, just like a rusto fat, only this cap works pretty well on a variety of brands.
Nibs wear out over time. Also, if you happen to be refilling , say, a deco color marker, you'll want to put a fresh nib in there so the new ink/paint will run better. I always keep extra nibs on hand so I can experiment with 'em, making chisel tips, sanding them at an angle, fraying them for larger coverage, etc.
This lil' S.O.B. is by far the best correction pen there is. It also stands alone as a unique and effective writing tool, and the white paint is surprisingly permanent, (weatherproof, fade proof). Yes you can refill them too. You should definitely get one of these because the way they "flow" allows the writer to make tags unique only to this type of pen. (P.S. It's squeezable, so you can get clean or drippy lineage.)
These are dope.
I like them for stickers cuz they dont streak and they have a strong chizel tip nib that is still pretty narrow. Plus their two dollars, plus they also work well for just catching handstyles, plus the ink is really nice, plus the durable body...amazing, definetely buy this product.