Magic Tricks

This is great. The cap looks no different from ordinary caps, and it fits most caps (in Japan at least). Anyway,I've got a couple of tips. First,I think the best cap color is black because of the color of the accompanying items(not the gimmick) is black. Also, my daughter accidentally discovered the gimmick's system by shaking it hard, so you should be a little careful when allowing spectators to examine it.
I find it somewhat hard to prevent a tiny "revealing" sound when I put the system back after the effect, though that may not be a problem for skilled hands.
Overall, this is really fun to do, and it looks unbelievable.
The price is rather high, but you will be happy to get one.