Introducing the MiniDuo™ from Matubo Beads!™. Czech Glass Mini Superduo Beads are 2mm wide and 4mm long with two 0.8mm holes. Mini Superduo Beads are everything you love about Superduo Beads just Mini-Sized (30% smaller than the original Superduo. Mini Superduos are sold in plastic tubes of either 8 grams /24 grams. There are 20 beads per gram. Mini Superduo Beads have 2 holes and work great on a variety of seed bead projects. Mini Superduo Beads are made in the Czech Republic to very high standards.