Magic Tricks

I've purchased too many impression/peek devices in the past. And I have to say this is just ok. Yes, a great idea and quite deceptive, however, a few things doesn't work that well in the real world.
1. The impression is not super easy to read, especially if you do the "fold in half and tear away" instruction to spectator. That makes the impression even harder to read if they really fold it like they mean it.
2. Since the impression is based on dark background, if the lighting in the room is dim, this will be even harder to read. Or maybe my vision is just that bad.
3. The whole thing about using any pen is a bit misleading. Yes you can use any pen, but there are some pens that will work better and leave clearer impressions. (And that is not sharpie)