Preciosa Czech Fire 4 mm Faceted Round Polished Glass Bead, Alexandrite Azuro Aurora Borealis Finish, 200-Pack Fire polished beads are all slightly different from each other, this adds to their charm Available in aurora borealis finish Beads are faceted round in shape; measures 4 mm diameter Beads are actually more of an oval even though called round Made from bohemian glass; comes in 200/pack