This effect is very strong and useful. The only thing that I disagree with that is said by the
creator is that the spectator can examine the box. The spectator could very likely be able to
quickly glance in the box to make sure that no other items are in it, but if the spectator were to
take a look in it for longer than a couple of seconds, I think that the spectator would probably see
the gimmick. Besides that, I definitely recommend this to magicians of all skill levels as long as
you can manage your audiences attention moderately well.