This is by far the largest marble I have ever sold, one that seriously mocks the moniker 'marble', ha. It is HUGE and incredibly impressive as you stare down into the depths of this vortex. If you want a major conversation piece for the middle of your collection, THIS is the one. Beautiful fuming, very ethereal in nature, twisting and swirling around inside. Go ahead, wow your friends with this bad boy! This is an incredible price for a marble of this stature.