This probably one of the worst tricks i've ever owned. First off what you get for the price is not
worth it, the trick should sell for 10 bucks tops. The gimmick to me seems easily detectable. The
trick itself does not require practice at all, it is very easy to do, but the spectators reaction
are either groans, or "oh clever" nothing spectacular.
There are many other effects
available in the store, that get great reactions and are cheaper.
I would recommend
Tele-vision, Scotch and Soda, or heck even Pyro perception, these have gotten me great reactions
compared to this flop.