This is the first trick taught in tarbell, so i purchased it hoping to learn it as taught in the
course. In the original effect, the gimmicks were i believe, made of glass. This is, however,
plastic. Upon receiving, i noticed gimmick didnt fit into the shotglass ( plastic) because of these
ridges on the inside of glass. Well, i just happened to have a shotglass exactly the same size made
of glass. Well half the time, the gimmick doesnt sink like its supposed to, it floats :-|.
Just wanted to clear things up a bit. I decided a year later to pull this back out and try it out again. To my delight, the gimmick no longer floats and it seems to be working like a charm now. It's funny how things work sometimes. I would say it's definitely worth the price now.