I liked the idea of this and that's why I bought it. It was a really neat presentation. It was kind of what I thought it would be in regards to how it works but I was off a bit. I really like this, good quality, has a high entertainment value and once you practice practice practice will be as smooth as silk and look killer. You're not totally clean when you're done so the boxes can't be examined per say but I've not had anyone question them so I don't think it's an issue at all. I recommend this to anyone who watches the video and thinks it might be for them, get it. You will be happy with your purchase