This was the first UV 6-way vortex marble that Mike ever created, back in 2005, and only the 3rd 6-way ever created period. It is a legendary marble, and it was one of those marbles that was SO far ahead of its time when it was created. Each of the 6 different vortices has UV worked into it, as you can see from some of the pics I took. There are 2 circle and 2 wigwag vortices around the equator, and then a triangle on each pole. A very special part of art glass marble history right here!