i call em roket caps but i think their the same thing. where im from they look like a needle cap but there red. the needle if u look at it is very wide and some how they shoot paint really far. so yea :D :D :D
this is probably the worst one ever this kid claims that the sharpie paint pens drip well OMG! this one is a must see
http://youtube.com/watch?v=_ZQRaXEvUPI