As the name indicates, this vortex marble is suuuuuper deep!! I mean, really, it's one of those where you look down into it and are amazed how the artist got it so deep, such a wild optical illusion! It also has a colorful wigwag on the backside, and then a band of silver fuming around the equator. I wish I knew who made it but it's not signed. Nice price for a such a sweet vortex!