IQ Buster - Doubler/Teaser Solution
Note that the wire puzzle for The Doubler (also sold as Teaser) DOES NOT come painted with a red and black ring. It was marked this way on the video to make it easier for you to see which ring is moving as the hooking can be difficult to watch. But the solution is oh so simple! Watch, then play it off to your friends as if you never saw a solution video.