This is a good mentalist effect; someone can take the square, put it in the box with whatever color they want facing the top... And then the magician can tell the spectator which color is sealed inside the box.

This is EASY, cheap and practical for a powerful effect.

The ONLY con I can think of to this (and why it lost a star) is simply because this box is of a flimsy cardboard. Regardless, it is still totally usable and maybe you prefer it for the organic feel it gives it?

Recommended.

It's time to let the audience know that you poses supernatural abilities! WIth this, you can!

The trick is so simple and straightforward. The audience thinks of a color behind your back, then puts it in the box. You can tell them what it is!

THis trick is pretty classic and really old, however it's a nice one. After you progress with this, (I suggest using this to practice) you can move on to a more higher quality set. These are going to scratch on you and get all scuffed up after a while. And if you step on it, it's gone. I learned that the hard way :D

Over all, I suggest this. Surprisingly a lot of Magicians don't know how this one works