Superduo Czech glass beads,
size 5 x 2.5 mm, 2 holes 0.8 mm,
tube of c/a 300 beads,
Super Duo Beads are a Czech made, glass Two Hole Seed bead. 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 are not simply coated crystal but actual colored glass with many coating options.