Superduo: Sapphire AB
Super Duo Beads are a Czech made, glass Two Hole Seed bead. They are similar in shape to the Twin bead, but with a few very important differences. Super Duos are a pressed glass bead with guaranteed size and dimensional stability. They measure 2.5x5mm, with two .8mm holes. A 7 gram pack contains approximately 95 -100 beads.