Agate Marble.  Natural Gemstone.  Banded Bulls Eye Bullseye. One piece selected for you.  1 1/4 inch to 1 3/8 inch. From old stock imported many years ago. Picture shows sample dozen to give you an idea of what is available.  But I will send one piece not twelve.  I have lots of marbles for sale and I don't want to list each one in a separate ad. Vintage.