Swarovski 4860 Fireballs. To me it looks like a crystal ball with a flat spot on it to attach it. There is no hole drilled in this ball. It is completely solid round crystal, with a small flat spot on the back so that it can be attached. These would make gorgeous earrings, or give a wonderful 3-d effect on clothing and other projects. Now discontinued, only a few left! I think these would make beautiful drawer pulls on a small jewelry box or knick knack box of some kind!