Czech Fire Polished Beads. Color: Opaque Red Bronze Metallic. 4mm Round. 50 Beads. In color Opaque Red Bronze Metallic, a red bead that has been coated in dark metallic Bronze color. In Czech Fire Polished beads, the shape called Round is actually more of an oval. Fire Polished beads are glass beads that are faceted by machine. The edges and surface are then given a softer, polished look by placing the beads in hot ovens or over open flames. By virtue of this process, Fire Polished beads are all slightly different from each other; this adds to their charm. Unlike Austrian faceted crystals, Fire Polished beads contain no lead. It is the heat polishing process that gives them their soft glow and brilliance. Colors may vary from dye lot to dye lot, so it is best to buy sufficient beads for your project all at one time. Colors may appear darker and more intense in larger beads, and softer and more translucent in smaller beads. Measurements: 4mm long, 3.5mm wide. Quantity: 50 beads, which is approximately 8 inches of beads when strung.