These nailhead beads measure 5mm. They are a flat faceted transparent disc shape with wonderful luster finish. You just don't see colors like this often. The luster wash over the transparent green adds to the effect of these vintage beads. These are from the early 1900's and were produced in Bohemia. Glass nailhead beads were used in the days of the flapper to embellish garments before sequins were developed. You will receive 24 beads per lot.