This is an AMAZING set of marbles by Mike Gong, simply incredible work. The larger 3 of the 4 marbles have 6 small vortexes on each of them. The smallest marble has one main vortex.
Single Vortex
Just under 2" in diameter
Six dichro Galaxies on this one, with UV glass in each galaxy and the dots
About 2 1/3"
Six Circular Vortexes on this one, various colors
Just under 2 5/8"
Six Vortexes on this one, two of each of the three styles shown here