The bases contain surface bubbles from the casting process.
Last four pictures are from the current batch.
Quartz, crystal overgrowth knuckle ring.
Each one is handmade and each crystal formation is unique.
They stand between 1-2 inches high off the finger.
Bases are cast in solid brass, crystals are hand cut to size.
There are three sizes available:
Small - (US 7/8)
Medium (US 8/9)
Large (US 9/10).