I was excited to buy this trick as it's a classic and has a perfect metaphor for my presentation.
The prop itself is well constructed but the instructions that came with this video are very poor.
It's not just that the person explaining his English language is poor but the way the video is shot,
it conceals the key motions making it a guesswork on how to use this prop. The overall video is only
9 mins. It would have been much better if it came with a single sheet of paper explaining with
illustrations instead of this badly produced instruction video.