This device basically allows you to vanish a card. This can produce the effect of causing a
card/color change, of course. I highly recommend this trick, but be aware -- you are not going to be
doing this trick twice, close up, for a group of people who have a brain. The second time, they are
going to focus on the prop, and the gimmick is visible close up (something you cannot see in the
videos). You have to at least Flash the gimmick once after the change occurs. The first time you do
this, they will not be looking for it and you are fine. The second time, a lot of heat on the prop.
Unless you are performing for children, in which case you could do a whole series of tricks for
them. Also note that the gimmick takes up the space of 4 or 5 cards, so you cannot pack an entire
deck with this into the case.
I only gave this a four because it is not quite as clean as
what you would expect. You cannot let the specs examine the prop (unless you can dispose of the
gimmick). If you are used to carrying a deck around to do card tricks, you should own this and keep
the deck packed with it. It's a good purchase, and will produce at least one highly amazing effect
without fear of discovery.