I'm stoked to have some more of Kaj's amazing 'Wonkastone' aka 'Stack the System' marbles available on Glass ORBits! These are some of the coolest and most beautiful marbles I've EVER seen and handled. So dang freaking fun, so mesmerizing, absolute glass jewels in the highest sense! Each is unique, and each also has a UV core that glows a killer green inside when you hit it with the black light, flashing through all the little clear holes in the murrini, and is also noticeable at the poles. Very hard to photograph, but wicked cool in hand! Super unique color combo here, and oh so clean and TIGHT! Signed 'Kaj'.