One of Petrick's cube effects, this one is the weakest in the Signature series line-up, in my opinion. But for a collector of Tenyo-esque effects, this is a neat piece of gimmickry.
The effect is straightforward: a cube is placed into a clear rectangular holder, and inside, it levitates up to the top of the holder. The gimmick that lifts the cube is well hidden, and so there is a puzzling element to this effect, but it begs to be examined, and unfortunately it cannot be handed out.
Like the other three tricks in Petrick's Signature series, these have a very Tenyo-esque feel and were probably created at the same time Petirck created Tenyo's Undercover cube effect. So I think it belongs in any complete collection of Tenyo and tenyo-style micro magic.
