Playable ART® Wonder Wire

A classic invention, sometimes known as the Mephisto Spiral.

Gently hold and pull the two wires apart, and watch the magic unfold! The wires appear to be unwinding, but in fact never do. Keep pulling and the wires will turn in a never-ending spiral. This charming optical illusion occurs because your fingers are actually slipping through the metal when you pull. The two wires are rotating, but only your hands are moving apart.