The nice thing about this glass is that you can use it throughout your performance to hold playing
cards, or a shower of coins, or whatever, and then be ready to do the hydrostatic routine at a
moment's notice. You don't have to keep your hand directly on the glass while the effect is working
so that telltale finger motion you might see in other versions of this isn't there. Your hand stays
on the bottom of the stem the whole time, away from the glass itself. That's a nice fooler.
I've seen other magic companies sell collapsible plastic glasses that are only used for card
tricks for this same price, so to have one that has a secondary purpose is even better. The included
case will allow it to travel in safety, and you can perform the illusion twice before having to
reset, so this is a great choice.