2x5mm oval beads that have a diamond shape that widens between the two holes in the center of the bead and tapers at the ends of the bead. Each hole measures approximately 0.8mm. There are approximately 139 SuperDuo seed beads in a ten gram bag. The smoked topaz really looks fantastic with the celsian finish on it. It actually gives this bead a totally new and improved look. We just love a transparent color bead with the added finishes.