It looks like a permanent marker felt tipped pen. It's probably a Sharpie or Pilot brand. I highly recommend the new Sharpie 'Pen' if you're looking for a nic

It looks like a permanent marker felt tipped pen. It's probably a Sharpie or Pilot brand. I highly recommend the new Sharpie 'Pen' if you're looking for a nice writing pen. (This is not the one he's using.) http://pen.sharpie.com/ http://pen.sharpie.com/