If you love to explore within your marbles, then THIS is the marble for you! Kevin took one of his sweet fumed 'carnival' vortexes, and then placed a colorful cap on the vortex with holes in it. These holes allow the viewer to get peeks of the wonders below, and invites the viewer to bring light and eyeballs to the mysteries that can be unveiled. This was an experimental marble for Kevin, so it's hard to say whether there will ever be another one like it made. There's a better than good chance that there won't be. Super fun marble with a suuuuuper sweet backside on it!!