An absolute waste of money. The box arrived in poor shape (something they know well considering they give you tips on repairing it before they even teach the trick), and the trick itself is horrible. It requires the stupidest, most impossible to actually use prop that I've ever seen. Seriously, unless you only perform for little kids, you can't even do the trick. And even then, it can only be done 1 on 1, seated, because the angles are so bad!
I'll say it again: an absolute waste of money.
I asked for a refund. No answer. For shame.