The listing, 10 mm blue grey beads has ended.
I'm not sure what they are made of my first thought was pllastic but on looking closer I'm not sure. They are light weight an have an unusual sheen to them. I think they are 10 mm I got this from comparing them to one of a known size.They are strung on a thin wire and it can quickly be converted to a necklace by adding a clasp. I can put one in the envelope when I send it if you let me know you want it....It will be a small lobster clasp with a split ring in a silver color