Great gimmick, I use it all the time. The only thing is, is that it doesn't tell you how to store it
properly. I've gone through 2 markers and they run out so quickly, but it was because of how I was
storing them. You NEED to remove the cap that comes with mental pen, and place a real genuine cap on
it without the gimmick when you're not using it. Keep the trick cap somewhere safe. Otherwise, your
sharpies will run out of ink during a show like what happened to me, and it'll be really
embarrassing.
As directed in the video, keeping the secret in the cap and THEN normally cap your mental pen you will have no problems that is how it is stored, not carrying around two caps, watch it again or join the secret FB community