They sell well from our store window. They have a good heft to them, not even I can absentmindedly break them, it requires real clumsiness. We used to get them from Buffalo and Romania but B & R dried up so Voila! - China. Approximately 4 inches in diameter. There's a glass loop on top for hanging. String not included. Each ball is unique, so you're choosing a style, not an exact duplicate.