These earrings are made with copper/sterling silver mokume gane. The outside circle measures 11mm. The offset inner circle cutout measures 6mm. The sterling posts curl down the backside about 43mm from the top of the circle and become part of the overall design.
The last photo shows the other metals Potential Motion Earrings can be made from. copper, brass, sterling, oxidized... all fun.
Earrings are custom made to order. See Shop Announcements for current turnaround time.