These are old glass beads I received from an acquaintance who used to run a glass factory. They don't break when pressure is applied by hand or dropped lightly, but there are scratches and what appear to be cracks on the edges of the flowers. It might be some kind of paint, but the details are unknown. The product was unopened, but there may be some dirt. I have washed them with detergent. Please purchase with the understanding of the condition.