Solid Starling Silver 925. Soviet Union Hammerand Sickle. Communist cccp ussr Biker. This ring is size 11 but i can change it to any size between 6 to 14. “The change is for free”. The back side of the ring is Solid. Note: If you prefer other size you must let me know. Otherwise i sand the size that i. Write in the description. I send all my items by registered.