SuperDuo™ are oval shaped, twin holed, pressed glass seed beads made in the Czech Republic by popular manufacturer Matubo™. They are of very high quality and are guaranteed to be consistent in size. These beads are made from coloured glass, not coated glass and are available in many beautiful finishes. Mix them with our SuperUno™ single hole seed beads. Use them to create flower shapes and double strands in necklaces and bracelets.