pretty much anything that fits the bore, even the flatline doesn't massacre this paint
-Doesn't chop or break
-Doesn't break on any clothes (only on facemask)
These balls are cheap, no doubt. But beware, if you choose to save the cash and buy these balls, you will not hit anyone in the entire playing day, and even if you do, the balls wont even break on them. You can slam these things on the ground really hard and all they'll do is bounce really high! the consistency is awful and the accuracy is too. no barrel can really make this paint work well.
Don't buy expensive barrels - save the money you would be spending and just buy boxes of marbs or evils and you will kill everyone. the best barrel will not hit anyone with this paint, but hey, at least it's cheap!