Super UNOS 2/5mm ONE Hole Seed Beads that have consistent shape and size. Perfect for stringing with super duo's. Superuno beads are pressed glass beads with guaranteed size and dimensional stability. They measure 2.5x5mm and have one .8mm hole . This listing is for an 11.5 gram Tube which is about 150 beads. Code No. UN0500030-27000, Full Labrador.