Bests & Worsts Reviews from Amazon

There's a trick to getting these pens not to leak globs of paint everywhere when you first get them. You have to hold the pen with the point upwards, towards the ceiling, push the nib in with your finger, you'll hear a small amount of air escape, like a hissing sound. Then turn back over and press repeatedly onto paper to get the paint going. If you don't do this, globs will come out and go everywhere! Happened to me and lots of paint was wasted. But they work great once you get them going correctly.